Updating to 6.0.1125 causes my comp to restart/crash

When I updated to the above version and restart my computer to finish the update it crashes/restarts. I tried a full uninstall/reinstall to see if it was just something going wrong in the update process, which garnered the same results. I am running windows XP media center edition: SP3. I don’t run any other Antivirus software so it’s not that either.

Am clueless as to what the problem might be.
Any Ideas?

please upload the minidump or kernel dump of this Avast related BSOD to ftp.avast.com/incoming
use unique filename