I have been able to previously post topics in my groups with no problem. Recently however, when attempting to post a topic in groups, upon selecting "Post Topic" I get a blank page. When I view source, only the header information shows up. I've attempted about everything I can think of, replacing every file associated with groups in the root, inc and other folders, copying a good known working version of all my group files from my test site, and about everything else I can think of. I'm stumped at this point. Anyone experienced anything similar or have any ideas where to start looking?