Maria, do you use Yahoo or MSN Messenger? If so the popups might be coming from them. The fix is real easy:

1. Bring up Control Panel, select Administrative Tools.

2. Select Services

3. Double-click on Messenger from the list

4. In the Messenger Properties window, select stop, then choose Disable as the startup type.

5. Click Ok

That worked for me and I was getting deluged with popups.

KarenM