transformation odd problem

Hi i am new to corel community, i hope i wrote this on the right place.

I have an odd promlem with corel x5 .

when i am going on the transformation ->potition for example to duplicate an object the value changes on its own. for example.

i select the object and i want to make a duplicate of it at 120 mm Horizontal i just have to put the value  120 to H copies 1 and hit apply right? not in my corel anymore (it used to work ok until now)

when i type 120 it changes by its own to 1.200 (and i notice tha if i don't hit aplly and just click somewhere inside the workarea it changes again to 12.000)

any solutions to this one?