Thank you for replying.I have already restored the latest backup.And though I can't find a repair.exe file in UFT, I have run the fixme.bat several times.What I have discovered is that, when I start a completely new project (just for test purposes), things work as they should.I think whatever the basic problem has been repaired, BUT my backup disk has the problem on it.I still have the problem just with that project. (BTW, I was able to restore my library files from my backup - they are on a separate disk.) When I bring up the Check screen, what should I mark or should I mark anything?As stated originally, this file has over 17,000 individuals in it, therefore it will take a while to check.It had not finished checking the first time after almost 48 hours. When I do my backups, it takes a total of 6 floppys.Is there any way to know which disk might contain the problem? Again thanks for your help.