HP50g buggy / strange key behavior

[tryxan]

So I did a few ROM swaps to investigate and the bug is present from 2.0, which is consistent with the description: "a completely rewritten keyboard handler to reduce the number of missed keystrokes" Someone must have messed something up there!
The good news is all my keys work ok with 1.23, the bad news is the screen is hum... not managed very well...
Really a bummer cause the speed is great on the 50 otherwise.