> erm......no it does not check version.ini if it's the 64 bit version
> but good to know you solved your problem....
> it's more likely that it's somehow a caching problem but I doublecheck everything
The correct reply is "thank you for trying to figure this out, but I can assure you that is not what is happening" or something to that effect. Here's an example from me: thank you for developing this program, releasing it to the public so we may keep up to date with MAME and other programs, and continuing to develop it for all these years.
Now, I was going to say that moving the file back in place caused it to fail again, but as it turns out that was just coincidental as was playing with the files in the first place. In fact, just clicking on "Check Now" button a few times will eventually work even if it fails a few times first. So, you were right- nothing to do with version(64).ini after all.