I tried syrup and even licked it off, no help. Hitting the watchamacallit key use to work but but I think I broke the damn thing from hitting is so hard.
Guess it would help if I knew something about computers.
I have had it happen before and then it apparently, magically fixed itself.
Must be the little "fix-it guys" that come around after you go to bed at night. Kind of like the tooth fairy.