Thank you very much TPS.
I see.... I have changed 2 to 1.6 myself....I thought it was plate thickness.
4 days later I saw another post, where Greolt and Tweakie have suggested to type 1.6mm (my plate thickness), insted of GetUserDRO(1151), so it´s working now.
I've been trying to understand how it works, so I've downloaded Screen4 and opened the screenset. I don't think I have UserDRO(1151).
Then I saw Greolts instruction, that I must create myself the UserDRO (1151).
I didn't do that, since it's working now, but I'm very proud that I managed to create a working LED, right next to "Auto tool zero" button, that shows the Digitize state :-)