To whomever can help,Thank you in advance for reading this. My issue is the following:I have Microsoft Windows XP Professional, Version 2 Service pack 3.Intel Core(TM) Duo CPU e*$)) @ 3.00 GHz, 2.25 GB of RAMComputer has 3 dual screen Nvidia video cards and I have 6 screens working total. I run Tradestation(Stock program) and this computer has been working great for over a year. Recently, I am encountering problems when I open my e-mail system, (Microsoft Office Outlook 2007) Part of Microsoft Office Small Business 2007 and I open my browser together at the same time. It freezes then works then freezes then works.. This only happens sometime but it has been doing this more and more recently. 1. I am unable to open up PDF files, doc file in WORD, and xls Excel file when I have my browser open. If I close my browser, then I can open a PDF that is an attachment in my incoming mail.. 2. If I open a browser and then try to open another browser, then it freezes. It will then be all right, then it will freeze again.. Then, if I go to my mail and click an incoming mail, it will not allow me to open the message.. If I close the browser, I can then open my incoming mail.3. Sometime I try to open another browser and it doesn't work. The top part of the screen is white. I have to close the browser then exit out of my e-mail program then try the browser and it then works. 4. Sometimes one of my screens doesn't startup if I restart my computer. Only sometimes. I then shut off the screen and turn it on 10 minutes later and it works? Very strange and does not happen all the time. As you can see, this can be very frustrating. If you have any advice for me, I would appreciate it. I would like to run a scan, but I do not know how. I do not visit any crazy websites and I do not have a virus(Ithink), Im pretty sure. I run AVG and I programed it two days ago not to scan the tradestation file with a tech support guy from tradestation.How do I find out if any other programs are running on this machine? What typr of scan should I run? Please help.. Thank you in advance.. 1 person got this answerI do too