I just registered on the forum because I couldn't find a solution to my problem with the search function.
So... when I
right click scan a file/folder the scan window does pop up but nothing happens. The scan is instantly completed, run time is 0:00:00, tested files/folders is 0 and amount of data tested is also 0 bytes.
Here's a pic:
Oh yeah, this scan did work the first few weeks after installation!