Looks like that did the trick- thanks for your help. Dave
Unfortunately, neither of the two suggestions above worked. When I reloaded 3.5.1 and tried to uninstall, the same original error message...
Prior to installing 4.0, when trying to remove 3.5.1 I get the error message:"log file unis000.dat is in a format not recognized by this...
Separate names with a comma.