If I was in your shoes I would draw up a list of possible culprits and extend the list to include everything you've installed by way of 3rd party software. I would then uninstall from the top of the list until, hopefully, the BSOD problem disappears. If you get back or close to the base system...
I have an HP iPAQ 2495b PDA which is essential for my work. I've had Vista Ultimate installed on my PC and have had absolutely no problems with the ability to sync between my PC and the PDA. However, I installed Windows 7 Home Premium and am very happy with it except for the fact that it...