I have occasional BSOD:s, about once per two to three days. I tried to open these minidumps, but it wont show them, as it claims the Symbol files are wrong, even though I specifically downloaded the ones for Windows 7 Beta that I'm using. So I would appreciate if someone could take a look at these and possibly help determine the cause of it. Also I would appreciate if I could get those dump files back in a txt format. I know that Windows 7 is Beta, and as such is not as stable and contains various bugs, but this has happened with newly installed Windows XP SP3 Professional also with latest updates. So I doubt that the question is OS related. I would like a confirmation from my dump files though, where the problem resides. Update: 01.02.2009 After removing the TCPZ driver, the computer has been running for over 2 days now without BSOD. I also found out, that the mentioned bug that appeared on Firefox when running it continuously for long times on windows 7 might be somehow related to the error leading to the BSOD, as it seem to occur more permanently for a somewhat short time before the BSOD shows up. I'm not saying that it is the reason, as it definitely seem to be driver error, but I just wonder what driver could affect Firefox such way. Update: 03.02.2009 I had another BSOD, and I'm not sure yet if it is or is not the TCPIP.sys file. Added the latest dump file. It also seems that the file dxgmms1.sys has something to do with the theme system and/or the explorer of windows 7, as when I tried to kill it with the KillBox, the background changed from picture to totally black and explorer crashed and restarted. Update: 04.02.2009 Another BSOD, added the dump file. Update: 06.02.2009 BSOD again, with the original TCPIP.sys in place. Added minidump.