Specs:
Windows XP home edition (5,1 build 2600)
Intel core 2 quad CPU Q6600 @ 2.40GHz
NVIDIA GeForce 8800gt 512 mb
Pheonix ROM BIOS PLUS version 1.10 2.5.0
(if any other info is needed please just ask).

Alrighty, everything worked fine until this morning when I tried to load up my old fallout 2 game using the ccd image, got to the installation screen and then the entire computer just froze. I have tried multiple restarts, different versions of daemon tools (4.12 and the new 4.30) and even other mounting software and so far nothing works. No matter what image I try to run it just freezes up and I have to do a hard reset in order to get my pc working again.

Any help would be very much appreciated, I can't figure out why it has been working fine for weeks up until now.