Yesterday, I changed my OS to Windows 7 beta from Windows XP on my dell laptop. It is an Inspiron b130 with an Intel-centrino processor from about 2 and a half years ago. Typically, I would connect to the internet via wireless networking. Before I made this change, my computer never had a problem detecting wireless networks that included internet connection. After I changed my operating system, my computer could not detect a wireless network. It simply said, "No networks available" or something along those lines. I clicked the "troubleshoot" link in the connection box on the toolbar, but to no avail. I looked into it basically all day yesterday from my internet-less laptop, and I found out that my network adapter is trying to detect some form of an ethernet cable that plugs into my computer. It seems as though my network adapter has all the sudden stopped trying to detect a wireless signal, which I do not know how to fix. I tried playing around with Internet Options under control panal, but that didn't do anything. I tried managing my network adapter; I would click "update" and that wouldn't work. I would click "disable" and then, "enable" and that didn't work either. It's funny too, because, Windows 7 is specifically made for laptops. Please help....how do I fix this problem??

You need a Windows 7 driver for the wireless network card. You would have to get this from Dell. It looks like Dell does not have Vista drivers for that laptop so it is unlikely they will have Windows 7 drivers.If you know what the brand and model of the built in wireless card is you may be able to find a Vista driver from the wireless NIC chipset manufacturer. Most Vista drivers also work with Windows 7. Without a driver you won't be able to use wireless.Kerry Brown MS-MVP - Windows Desktop Experience

The most common reason for this are driver issues... go into device manager, and check for any problems (usually yellow exclamation marks) next to any devices, especially the wireless adapter. (Obviously, you have 'some' form of getting to the internet, since you posted this question... {smile} )If Win7 isn't happy with the drivers, you'll need to find Vista-compatible drivers for your WLAN device (if you are using Win7 64-bit, make sure that you obtain drivers for Vista 64-bit...)After Win7 is 'happy', or at least content with the drivers, the next step is to define your WLAN settings - those parameters don't carry over from your XP configuration. (SSID, WEP or WPA settings, etc...) If your WLAN router doesn't broadcast the SSID, then your card won't auto-find it, until you enter those params manually...One last caveat... many folks have reported that using IPv6 causes a variety of WLAN problems. Until you get your WLAN connection rock-stable, you might want to disable IPv6, just to rule it out of the equation.Good luck, and let us know the results.Jim