Update.
I have now after some quirks, updated my Windows with an US english version. ( I had some idea that this would solve some problem with US software )
Efter running some nights with MDL 6.5 I decided to try MDL 7.1.1 and received the same problem I had earlier. I.e. Crash after "Removegradient". Now I have commented that line
I havent seen any responce from Difraction limited but I just found out that there is a new version of the MDL 7.1.2 I try that one and se if it works better.
Btw: Is there someway I could check this with a script and some images??
Regards
Niklas