Counterspy V.3 error - Subsystem: Scan Control, Description: Could not complete scan

I've had this problem ever since upgrading to V3. I've tried uninstalling and doing a clean install, I've tried disabling, then removing my antivirus (Kaspersky v7), and reinstalling counterspy. All defs and programs have been updated.

I get the error on automatic or manual scans, quick scans, or deep scans. It does not fail on the same file each time, sometimes it runs longer, sometimes shorter, but I can't get a scan to complete without getting this error.

The counterspy event llog shows the error as (Event: Error, Subsystem: Scan Control, Description: Could not complete scan.) As a programmer, I must add that's not a very helpful error message - sounds like a general error trap.