Tell how you did the installation. Is this two hard drives or two partitions on one drive? As well, what versions of XP and Win 7 including whether 32 or 64 bit and what was the installation sequence?
I'm not sure how this happend but everytime I reboot I get the Blue Screen with a STOP: (0x0000007E (OXC0000005, oxbaa88756, 0xbacc342c, oxbacc3128)
I can then reboot to safe mode but the system reboots using the wrong hard drive and boots Win XP instead of Win 7.
All I have to do is press F8 then select the right hard drive and the system boots Win 7 normally and all is OK.