Same for me. Same card as well.

u da man!

The same also goes for when you change numerical values such as Harware Polling Period and Min/Max values, etc..Pressing Enter sets/saves the new value.

Yeah I use MSI AB too..PrecisionX 16/15 gives me issues, same as a lot of other ppl..OSD works/don't work sometimes, game crashes, yada yada yada..Only other things I could say to try is deleting the EVGA\PrecisionX 16 folder after uninstalling and before reinstalling because the latest few versions don't have the clean install option like previous versions did..And not forgetting to press Enter or OK when making changes.

After monkeying around with PX 16 and dealing with it's issues, yet again, starting with a fresh install with the EVGA/PrecisionX 16 folder deleted..With OSD on (which it is by default), then in the Monitoring Settings select what to show in OSD..Select a Screen Capture Hotkey and click OK..I tried F12, Num 0, C and some others..Combinations like Alt + C or Shift + C (or whatever) didn't work, sometimes..Initially, Screen Capture wouldn't work at all until I selected something to show in OSD from the Monitoring Settings..From then on, Screen Capture worked correctly whether OSD was on or not or whether anything in the Monitoring Settings was set to show in OSD or not..Seems like the OSD/Monitoring Settings had to be initialized and working first, then it was OK, time after time..Might not be that way or work for everybody but at least that's the way I had to do it to get it working..Just sayin'.