I NEVER get a pop-up on the Forum page, either in Internet Explorer or in Firefox. I don't even get a "popup blocked" message.

Two thoughts:

1) Check your computer for spyware. I use the free programs AdAware (from LavaSoft) and "Spybot Search & Destroy".

2) Your pop-ups might be coming from the "welcome.to" forwarding service, which lets people get to the site through the address http://welcome.to/columbo. This "free" URL forwarding service does, unfortunately, add pop-ups. I never use it. Is that what you use?

We keep that URL as a memory aid for people who would have a hard time remembering our "real" URL, which is:

http://www.columbo-site.freeuk.com/

If you use the freeuk.com address (and if you don't have a spyware problem), I bet the pop-ups will go away for you!

3) Or, you can avoid the ads inserted by "welcome.to", by bookmarking the Forum page itself. It's at:

http://pub10.bravenet.com/forum/show.php?usernum=806565873

YAY!!!!!! That worked Ted!! I hadn't even noticed that it said "welcome to"....but now I typed in the actual address and that nasty pop-up is history!!
Thanks so very much for your help!