BSOD's On Vista

A BSOD means that something inside the OS is so screwed up that it rather halts execution instead of potentially corrupting itself. But, by Vista they seperated the user space and the OS space so much that there are virtually no user programs that can tinker with the kernel so much that it bluescreens (unlike in XP where the occasional application could cause it).

Virtually the only thing that can cause a BSOD in Vista are bad drivers or faulty hardware. You generally don't have to worry about your individual applications (as long as its not, you know, spyware and the like, but Vista is fairly more protected against that as well).

KERNEL_STACK_INPAGE_ERROR and BAD_POOL_CALLER makes me think that something is wrong with your system memory. Try running memtest (to test your RAM) and Spinrite (to test your HDD, in case its a swap file read error). Also, if you havent done it before, run a pre-boot chkdsk as well.

Jam it back in, in the dark.