you'll have to excuse all the "Roxio Experts" they have the attitude that if it didn't happen to them then it didn't happen at all.
First off when I ordered the download version each and every files was corrupt, I had to have the download reset a couple of time's, I tried on different computer's at different locations, and yet it was still corrupt, I finally did get it downloaded after waiting a day.
Once I installed the #$^@ thing like you it called for a reboot, this was the first thing I installed after a new and fresh fully updated machine that I just completed the activation on. After I did the required Roxio reboot the first thing that popped up was the windows activation wizard, yes it found too many hardware changes, hmmm wonder if that had to do with all the ATI stuff it un-installed during it's installation process, that was the first thing that set me wrong, I bought my all in wonder card for a reason not to give roxio permission to remove the functionality, and nowhere in the requirements did it state that there were going to be ill effects with ATI products, if it had I would have steered clear of this purchase in the first place.
Keep in mind they released Roxio 8 and never did they release an update for the downloaded version.
AMD XP 4200+ Dual Core / 2 GB's ram/Creative Labs audigy 2 Plat./Windows XP MCE fully patched/Plextor 712SA/ATI 9800 Pro AIW