Thanks a lot, it helped.
The customer service didn't suggest anything beyond the obvious, that I hadn't tried before asking for help. First they said to re-, and uninstall. Second, they simply stated that the program is not compatible with the newer browsers, no suggestion at all. Third, to use the uninstall/remove button in the control panel. It’s beyond my comprehension why they didn’t tell me what you said.
Thanks again, it was a great help.