I had this problem, I moved the fsds from F drive to D drive thinking all would be well. It wasn't!
When you instal fsds it puts 3, yep count 'em folks....
3 inserts into your Registry. Running the uninstal program DOES NOT REMOVE THEM. These point to the last place where you had fsds set up properly, which includes the address for the Variable Table.txt.
Copy all the project files, bmp's, .mts etc that you have created and paste into a folder suitably named.
Delete fsds, go into your registry and delete all references to fsds, Abacus etc and then reboot.
Instal a new fsds and copy and paste your saved work back into your new fsds.
It worked for me, but I lost a lot of hair fathoming it out.
regards Collin
