Something strange happened to BIAB on my Vista laptop. I have been using MSE (Microsoft Security Essentials) for years with no problem. A few weeks ago, BIAB has become very 'sluggish'. If I click on a part marker or next song icon, it takes considerably longer than it used to. And rebuilding the song list takes much longer.

I went to a restore point a few weeks back and all worked fine. However, when MSE updated the problem returned. When removing MSE, BIAB works fine. I tried another antivirus and the problem returned. Disabling the antivirus problem does not cure the problem. It seems like all is fine if no antivirus is present.

BIAB factory reset did not help. I ran a full virus and malware scan and found nothing.

Any suggestions?

Thx,
R