I have never seen this problem before and I have used Mach for maybe 3 or 4 yrs now, also I always use they keys you want to use as my keyboards are mini flexible type similar in layout to a laptop.
 As an experiment could you set your keyboard to English (United Kingdom) in Control Panel > Regional Settings.
 Failing that can you attach your xml file and screenset. If you zip them and attach them it should be accepted by the forum.

Hood

Because my problem with my compaq is unsolveble can somebody tell me which laptop to use so I can buy one (secondhand) where the numeric keys are working (see the problems I have above).
Fill in DRO's in mach3 with the numerical keys (the row under the functionkeys).

Greatings                                      Bart bruyninckx

Please attach your xml and screenset, there must be a reason you cant use the numbers to enter into the DRO, especially as it happens on both a desktop and your laptop. This is not normal and maybe I can find the problem within your xml or screenset, as it is happening on both computers getting another laptop is unlikely to solve your problem and will just be a waste of money.
Hood

Thank you very much Hood, the problem is solved by turning the keyboard to English. I tried it before with other ones but not the UK one. I think the problem is with my keyboard settings, that you have to push the shift-key and then a numerical key to put data in the mach3 DRO-field. So thanks again for the tip,

greatings         Bart Bruyninckx