As my subject states, my monitor is NOT reporting correct frequencies - or, I am 99.9% certain it is not.First, I have two desktop PCs - one with built-in Intel graphics accelerator and an ATI graphics card, and the other with built-in Intel graphics accelerator. Both PCs are up to date via Microsoft Update, the ATI PC runs Windows XP SP3, and the other PC runs Windows XP Professional SP3.My primary PC is the Windows XP machine the "frequencies" problem did not develop until recently. While powered on, after disconnecting the monitor's DB15 connector from the ATI PC and connecting it to my 170L, I shutoff the XP PC with a hard power down - in other words, foolishly, I depressed the power button until the system shut down. At that time, I had no idea what had occurred until the next morning when I reconnected the DB15 to my XP PRO PC (with the system completely powered off - disconnected from any power supply or source). It could not be more obvious, after reconnecting the DB15, once XP SP3 loaded, my desktop screen was skewed to the right. Initially confused, I looked at the Display Properties and they reported nothing had changed - settings of 1280 x 1024 with 85Hz screen refresh rate and the monitor's color profile as my default. Still confused, I check the monitor's on-screen info and discovered the inconsistency . . . 64.0kHz / 60Hz.I tried uninstalling the monitor's driver and reverting to Microsoft's default driver, but the monitor's on-screen info remained the same at 64.0kHz / 60Hz. I tried changing the Display resolution and refresh rates, but the on-screen info (again) remained the same at 64.0kHz / 60Hz. I should add that when I changed the Display settings, the display settings did change, the desktop changed as it should, but (again) the monitor's on-screen info did not change. Concerned, but not terribly, I powered the XP PC and monitor down, disconnected their respective power cords, and reconnected the DB15 to my XP PRO PC. After reconnecting the monitor's power cord, I powered up the XP PRO PC and checked the monitor's on-screen info - it read, as it should, 64.0kHz / 85Hz. And when I changed the refresh rates and screen resolutions, the on-screen info changed accordingly. In short, when connected to my XP PRO PC, the monitor's on-screen info reports correctly. Concluding the problem is directly associated with my XP PC, I disconnected the DB15 from its' ATI graphics card and connected it to the motherboard's graphics connector, then reconfigured BIOS to recognize Intel graphics accelerator on the motherboard and powered on the XP PC. No change with the monitor's on-screen info - when I changed refresh and resolution settings the display changed, but the monitor's on-screen info remained fixed at 64.0kHz / 85Hz.It seems reasonable to conclude that the problem must be associated with Windows XP SP3, but since I didn't change a thing with the operating system, I am reluctant to reinstall it. I'd prefer not reinstalling if not 100% required as the only fix. I'm hoping that I'm not the first to have this problem and that someone here chimes in with support and a simple solution.Thanks in advance for all your replies. Regards, CurlySue 1 person needs an answerI do too

Hi CurlySue2,Uninstall the existing drivers and then re-install the latest drivers from Intel website.a. Open Device Manager by clicking the Start button and then click on Run, type devmgmt.msc in the Run box.b. On the Device Manager window, look for the Display adapter drivers, right click on it and select Uninstall.c. If you see any option to delete the driver software completely, remove it.d. Restart the computer.e. Visit the manufacturer website and get the latest drivers for your Display adapter.Also install chipset drivers on top of display driversRegards,Manasa P – Microsoft Support.

Thank you for your reply, Manasa.While I could have been more complete in my initial post, prior to posting, I did try what you have suggested - I believe - and the problem remained.Specifically, within Device Manager, I opened "Display adapters" then right clicked on the ATI adapter and selected Properties, clicked the Drivers tab and then the Uninstall button, etc. I followed the same procedure and Uninstalled the driver for the Intel Graphics Controller. I do not believe I saw an option to delete driver software completely. However, I suppose that depends on how Microsoft defines completely. For me, unless I know precisely what the driver IDs are, as well as their location(s), I cannot remove them from my HDD - and that may not be "completely" since there are likely a variety of Keys in the Registry that refer to the same driver software that could or should also be removed if the removal process were truly a complete one. But I digress, I think you get my point here.Under my Windows XP SP3 operating system, within Device Manager, I have an option devices for "Display adapters" where both the ATI graphics card, and Intel Graphics Controller are shown. I also have a device for "Monitors" where "Default monitor" and specific manufacturer's monitor (in my case, Dell is the specific manufacturer) are shown. I uninstalled the "Display adapters" drivers for both ATI and Intel. I also uninstalled the drivers for both the "Default monitor" and the "Dell" monitor. Regarding chipset drivers on top of display drivers, are referring to ATI and Intel drivers, that get installed under the "Display adapter" or are you referring to the "Monitor" drivers, or some other chipset driver?Thanks again,CurlySue

This sounds more like an issue with the monitor and not the tower.I don't vote for myself I'm not here for the points. If this post helps you, vote. Visit my forum @ http://repairbotsonline.com/

If it were, joelj1964, the SAME PROBLEM would exist when I connect the SAME MONITOR and its CABLE to my Windows XP SP3 Professional PC. If you re-read my initial post, you will read that the problem does NOT occur on the Windows XP SP3 Professional PC. Therefore, there is NO WAY this is a monitor problem - the problem is CLEARLY the with the Windows XP SP3 PC (or as you stated, the tower) and most likely its operating system software. Both XP and XP Professional operating systems are 32-bit, BTW.CS

If it were, joelj1964, the SAME PROBLEM would exist when I connect the SAME MONITOR and its CABLE to my Windows XP SP3 Professional PC. If you re-read my initial post, you will read that the problem does NOT occur on the Windows XP SP3 Professional PC. Therefore, there is NO WAY this is a monitor problem - the problem is CLEARLY the with the Windows XP SP3 PC (or as you stated, the tower) and most likely its operating system software. Both XP and XP Professional operating systems are 32-bit, BTW.CSYou are correct that your initial post stated you connected the monitor to another tower. I missed that for whatever reason and apologize for the same. Hope you find a solution to the issue.I don't vote for myself I'm not here for the points. If this post helps you, vote. Visit my forum @ http://repairbotsonline.com/