Error Message "FreeCommander has stopped working"

[RedCat]

When ever I exit FreeCommander (using beta 607) a window pops up with the message "FreeCommander - freeware file manager for Windows has stopped working"

All my PC's are Win 7 64bit and the problem seems to occur on all of them. This has been occuring now through the last several beta versions. This is the only program I use that causes this error.

How can I fix it?

Thanks

[Dreamer]

What about build 608?