I'll try to keep this as short as I can. Yesterday evening, I uninstalled TI 7 and and installed TI 8. I have a Compaq Presario 6370US with a 2.54 MH Pentium 4 processor running XP SP2. Other resident software of note are WinPatrol 18.104.22.168, NOD32 2.12.3 and BOClean 4.11. Immediately after installation and reboot, I noticed the fan was running high speed and a lot of disk activity, which usually means high processor utilization. After about 30 seconds it calmed down and the first task I thought I'd complete is burning a boot CD. That entire exercise didn't go well, at all. The process would repeatedly freeze, my mouse would freeze (USB mouse) as would any response at all from my system. Each freeze would last for about 10 to 15 seconds. Finally at the end, I'd get an error message that the boot CD could complete. What's really strange is that in looking in device manager and my computer, my CD and DVD drives disappered! Completely! I rebooted several times and got the exact same results, following this process. Rebooting into safe mode to try burning the CD didn't work either, except that I didn't get the high disk activity and processor utilization I had before. Still could not get boot CD to burn. After some time, I just decided this isn't going to work and uninstalled version 8, did a system restore and reinstalled version 7. This brought me back to my normal condidtion and, of course, version 7 works perfectly, including my ability to make a boot CD. If anyone has any suggestions here, I'm willing to try them, since I know how to get back to normal if things don't work. I'd like to try to make it work, if this doesn't mean I have to devote a week of my personal time, before I contact Acronis for a refund ( I'm assuming that's still an option). Sorry for the length. Am trying to anticipate information someone might need to be able to offer some suggestions. Thanks and regards.