UBB.threads PHP Forum Software Community Forums UBB.threads Version 7/8 Support Urgent: No input file specified.

As strange as this seems, when I changed "Maximum number of users that can be invited to a Private Topic" back from 50 to 25 (the default), the problem was gone. (The problem happened after I changed it from 25 to 50, strangely enough.) Anyone know why this would happen?