shift key types number 4
Hi,
im currently operating a mac pro 1.1 with mac os x 11.6 using a logitech keyboard.
when i'm using the left shift key it types the number 4.
4N4OW 4I 4AM 4TYPING4 4WHIL4E 4HOL4DING4 4S4HIF4T
havent tried another keyboard yet. if i press the right shift key it types: H
what can i do about this4?4?4
thanks in advance!
4Didier
Mac Pro, OS X El Capitan (10.11.6), logitech keyboard