Here's what happened.
I had a video driver crash and when I restarted the rig, I could not get the driver to re-install.
I wanted to switch from Win 7 32 bit to win 7 64 bit anyway, so I saved all the GPU Tracker files on a separate drive.
I then proceeded to wipe and re-load Win 7.
Re-installed the tracker app, and now I want to resume the WU I was working on before the crash. Is this possible ??