Found the problem. German Windows seems to use commas instead of dots for floating point values. It seems that Objaction Scaler uses some system library. Poser and UVMapper use dot. So you have to exchange all dots by comma, rescale the object and replace the commas by dots again. Oh my, that's Windows. Finally found out that the *.obj plugin for 3DS Max is also able to rescale. So I do not need Objaction Scaler any longer. Thanks for your reply - TFx