I'm using version 6 The first time the BSOD appeared was on the 25th January. I started up Photoshop roughly 15 minutes after a reboot. Chrome was also running but I didn't really do anything else. The second occured yesterday, when the computer was more or less idle. I had a video loaded in from a streaming site (loading was already finished minutes ago) and I just left for a minute or two to grab check on something. When I came back, the first thing I saw was the familiar blue screen with the white text. No avast related message, or any type of message that would point to the cause of this was displayed.
If this is how it was supposed to look like
http://en.wikipedia.org/wiki/File:Windows_XP_Blue_Screen_of_Death_(PAGE_FAULT_IN_NONPAGED_AREA).svgthe second and third paragraphs were missing entirely. It went straight from "Windows has been shut down to prevent damage to your computer" to "if this is the first time you've seen this..."
Event viewer didn't seem to specify any errors either, other than a "system error" with a time tag AFTER the reboot and error logging. I ran a CHKDSK with the R parameter just to be on the safe side then did another reboot and ran a quick scan with avast just to be safe, and everything was working fine until a little more than 2 hours later when that strange thing happened during the update.
Someone told me malware could give false Blue Screens or cause actual ones. I didn't think that would be the case specifically because Avast never found anything. But after this, I'm really afraid of the possibility that it may have been compromised.
On a related note, which is the latest version of the virus signature database? I received no update notification when I turned on my comuter. I withheld posting this reply until I see Avast attempt another update (which it did a few minutes ago) but it claims to be up to date, with version 120213-2.