So far (since last Wednesday), I haven't had the problem again. I have since restarted the AVG Resident Shield, but I have uninstalled the Email Scanner module (since I only read emails on web pages, such as GMail, and don't use POP3 or IMAP, anyways). I also currently have Adobe Reader and Java 6 Plugin add-ons enabled (all others are disabled).
Will keep updating if it happens again.
malu
