Hi Dr.Winston,
There is no incompatability with Spybot that we have heard of - they co-exist happily on millions of machines.
If you are using XP, we can try a System Restore to see if that helps at all.
Un-install Ad-aware completely. Do a Sytem Restore to a point known to be just before installing Ad-Aware.
Re-install Ad-Aware. Navigate to the default path for AAW (
C:\Program Files\Lavasoft\Ad-Aware SE ) and look for files named defs.ref and defs.ref.old - rename whichever are present, by adding, for example a "-1" to the end of their name(s).
Then go here:
Current Definition File (preferably using Mozilla Firefox, as there are a few incompatability issues with IE and the new Lavasoft website

)
Download the file
defs.zip and unzip it to the above-named Ad-Aware address. That will give you the current definition File -
SE1R125 06.10.2006. Open Ad-Aware and look at the top of the main Status page.
Then see if the two co-exist peacefully. Let us know how you get on,
Regards,
Spike