It's possible, however unlikely, that this is not related to AVG, and could instead be related to something else I had done last time I was in Windows (I had downloaded a couple things, though I scanned them with AVG before doing anything with them, then again after extracting them) and I had installed Starcraft. However, none of those should have access to core system drivers
OS: XP
Acer Netbook, so no cd drive
installed the latest AVG as of Feb/March 2010, then applied weekly updates automatically
Occurred yesterday, after AVG updated and requested that I reboot my computer. As it booted up, it hung on a Windows loading screen (black background and Windows logo, not the one just prior to the login screen). After several minutes, I hard-shutdown the computer, then booted it normally and again with last known good, both with the same result. I tried the three Safe Mode boot options, and they all hung immediately after displaying AVGIDSEH.SYS driver. I then tried the other boot modes in the advanced boot options menu (debugging mode, etc.), and all hung at some point or another.
I made an AVG rescue USB, which didn't at first work, but worked once I re-downloaded the .rar and extracted it (occured as I wrote this post). At this point, I'm running a virus scan before renaming anything.

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