I really know very little about the inner workings of my computer, but I will give all the information that I have. Any help will be greatly appreciated. New Install of Windows Vista Home Premium legit copy (slicked C:\). RAM1: Corsair 2 Gb X 1 GB PDR2 SLIDHXEPP XMS2 6400 800 MOBO: ASUS P5N-EM HDMI, LGA 775 DDR MB, new replaced recently Chip: Intel Core 2 Duo E7200 2.5 3Ghz CPU SLAVN New Power Supply I have cleaned out the dust, and ram was tested when the Motherboard and power supply were replaced about three weeks ago. What I have noticed is that it only crashes when I am in Facebook (hmmmm)... Sometimes I am on FB for 15 minutes before it crashes, and sometimes as soon as I go in there especially when I am playing Words with Friends. I have attached a picture of the blue screen. The error message I get is this: Problem signature: Problem Event Name: BlueScreen OS Version: 6.0.6000.2.0.0.768.3 Locale ID: 1033 Additional information about the problem: BCCode: d1 BCP1: 00000020 BCP2: 00000002 BCP3: 00000000 BCP4: 8C4CF755 OS Version: 6_0_6000 Service Pack: 0_0 Product: 768_1 Files that help describe the problem: C:\Windows\Minidump\Mini120711-04.dmp C:\Users\Lotus\AppData\Local\Temp\WER-56175-0.sysdata.xml C:\Users\Lotus\AppData\Local\Temp\WER4E9C.tmp.version.txt I hope this is enough information. This a home built machine, and I have never received any blue screens before we loaded the Vista Home Premium. I have not checked drivers because I am not sure how to do that, and I have not checked for updates to Vista, but I think that was done on installation. Thank you for any help you can give.