After quite a break of playing poker, decided to try and pick it up a little again.
Dusted off PT4 and tried to start it up. After getting it up to date, nothing happened. It just didn't pop up.
Tried to start it again and I got the message that PT4 was already running. Shut it down with taskmanager and tried again, but no luck.
Uninstalled and redownloaded it, but still not working.
There's no error messages or anything, and I'm closer to a computer disaster rather than genius, so could use a little help!