> I am having problems saving a fix.dat file. I'm running v3.40c of clrMAME. I
> have all my rom paths, sample paths, and add paths defined (and my dat file
> loaded). I perform the scan, then attempt the Save->Fix-Datfile. I am prompted
> with the "Save as" window and enter a filename. I click the Save button and the
> window disappears.


Most likely the prompt where you have to enter a description is shown behind the other windows. Check that. Otherwise it's some access (read/write rights) problems with the folder/drive you want to save the file to.
The routine hasn't changed for hmmm...2 years or something...and it works fine.

Roman Scherzer
ClrMamePro