character is floating in show tool pro

Hello to all! When I export (DTS) my character (1mesh+biped) from 3dmax and open in in show tool pro it lookes fine, but when I apply the DSQ animation sequence (from player.max) the character jumps up and is floating... :(
I tried everything I know (axis, pivot,..) and cant find the origin of the problem...
I can provide more info iff nescesery... To all experienced advisors in the place, please help!thanx