Back again.
I'm cautiously confident that I've found another workaround for the problem with Panda Dome, and this one appears to have stuck.
I was puzzled as to why the crashes, although sometimes apparently at random, could be triggered at will, at least on my machine.
One thing which nearly always triggered an immediate crash, even if the system had been running for some time without any, was to click the Windows 'Start' button.
This led me to think that there was some issue with Windows Explorer which was triggering the crash.
One other clue was that one of the first things I noticed was that if I clicked Start, even if it didn't crash, the user-added shortcuts were a blank box, only populating after several seconds.
I tried excluding Explorer from scanning, but that made no difference.
I then tried excluding my whole system drive from scanning.
Hey presto, no more crashes!
So, by a process of elimination, I eventually narrowed it down to the folders which were triggering the crashes when they were scanned.
I now have three folders excluded from scanning –
Documents and Settings\[Username]\Start Menu
Documents and Settings\[Username]\SendTo
Documents and Settings\[Username]\Recent
So far this has stopped the regular crashes, and Panda has updated without them coming back again.
This is pure speculation, but what I suspect happened here is that Panda rolled out an update which broke compatibility with the Windows XP Explorer, which is quite different from that on later versions of Windows, of course.
When Panda tried to scan those folders, like the 'Recent' folder being scanned when 'Documents' is clicked on the Start Menu, this triggered a crash.
This is of course only a workaround, not a fix, and the problem could come back at any time, but at least on my system it seems to have fixed it for now.
There is a security issue with excluding system folders from scanning, of course, but as the folders concerned only contain shortcuts, I would think it's pretty minimal.
If anyone else still has a malfunctioning installation of Panda Dome installed, I would be interested to know if this works for them.