Thanks for the heads up and the work around.
I figure the problem with the older asp.net based bbs software you use and Chrome's ability to display iframes inline may be the culprit.
I understand completely how tough it would be to undetake a major upgrade. Your sql db no doubt is huge. I have several aged pligg based sites that are of beta nature and the newer coding has changed dramatically to accommodate the newer browser abilities that are emerging. I dread the day I have to let go of the past..it will be like loosing my Amiga's all over again :0(
Good luck to you if you ever do HAVE to upgrade.