I've used Clr Mame before and never had any problems. I just started using it again recently and I've noticed it's not fixing my incorrectly named sets. It brings up a dialog saying "2Tigers" is wrong and asks if I would like to fix it(twotigrs) and I click yes/yes to all, but nothing happens. The file remains unchanged. It fixed other things like unneeded and such, but not the names which is pretty much all I use Clr Mame for since the other options blow me away. I've got "FIX" checked too. I'm using a dat file I generated from the mame.exe file. Thanks for you help.