Please
enable logging, reproduce the problem by playing a few hands on a single table and submit your PokerTracker.log and PokerTrackerHUD.log files (zip/compress them first, call it logs.zip) to the
Support system , and link to this thread in the reference field of the ticket so that we can investigate.
Please attach the file "c:\program files\pokertracker 3\data\layouts.pt3" too.
After this, if you haven't made many changes to your layout you may want to revert to the default.
With PT3 closed, Rename the layouts.pt3 file I mention above and when you restart PT3 it will recreate the default layout for you, which should work.