...you are also running Norton Personal Firewall or Norton Internet Security...
...well, then this post just may be for you!
Here's how I solved my problem (I have NPF 2002...not sure about the settings in NIS, but they must be similar:
Go to: Options > Advanced Options > Active Content. Under "Script", there are three options:
"Allow All Script To Execute"
"Block Script Pop-ups Only"
"Block All Script."