I have always found it a very useful part of PDF 24 to be able to take user defined areas of a screen grab. However for some reason it started to refuse to do any screen grabs at all. As soon as I set it, the screen goes black and I have to Ctrl/Ault/delete to leave the program.
So, after uninstalling my last version I have now installed the Office latest version, but the same problem is still happening.
two other users have reported the same issue but we currently don't know what the problem is. One of the users could solve the issue. He had two graphic cards activated and after he had disabled one of them the problem was fixed.
We monitor that issue and we hope that we will find a fix for that rarely occurring bug.