it sounds as if the hud on your machine is beneath the table, right? this i crossed very rarely on some machines.... no idea why..... in those cases, you could get it on top again, but when you clicked the stats to get the details, the hud did move again beneath the table..... very odd....
just spend 3 hours to figure out where the hand number is stores.... always was running around the right place, but couldn't figure it out.... until just now..... VERY funny way they stored the number, want 3 hours of my life back