This affects all aircraft. I have swapped out 5 different keyboards.
When I first go into P5.2 there seems to be a "virtual" shift key depressed. I can hit 2, 3. 4 etc. without holding the shift key down and have the respective windows pop up. Also if I press ONLY the F10 key the kneeboard pops up. Any function requiring a 'shift plus any key' works without holding the shift key down. The only way to eliminate this is to momentarily press the shift key and things go back to normal.
I know this doesn't seem like a huge problem but it is not normal.
Thanks.
