Hi renegade55, and welcome to TSF.
1) When you update Spybot look for something that says, "F/P fixes, Minor updates to avoid false positives." Make sure you tick the box.
2) Ad Aware can be configured to select/deselect programs etc to be scanned. Just deselect Spybot.
Apart from these two points, my research shows that there isn't really a conflict issue with these programs.
Any more problems, please post back.
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Regards, Dave.
If it ain't broke, don't fix it..