I'm running Vista (64-bit) and had no problems using the latest version of the FLAC frontend before now. The problems started when I reinstalled my O/S.
Basically, if I check off either 'Add tags' or 'Replaygain', I get this command window which disappears very quickly. The only other time I had an issue like this was when I had an unusual character in a filename. These files have no weird characters.
I've tried uninstalling and reinstalling, closing other running programs (firewall, defragger, A/V), checking ownership rights, encoding a single track, using my laptop which is running Vista (32-bit), installing in program files directory and program files (x86), dragging and dropping vs. using the 'add files' button, encoding old wavs and new wavs.
By the way, I'm using EAC to rip to wav (using the same profile I had when FLAC frontend was working). At this point I have no idea where the problem lies. Please help.