3ds max Bitmap size changes when rendering


Hi poeple
i´m rendering a scene with bitmaps applied on surfaces but the size of my bitmap is different then on my viewport. anyone has a solution to that? I allready increased my texture resolution under display settings but thats only for not rendered viewport right? Updated also my graphic card wasn´t the problem.
Do my settings of width and hight under bitmap parameter depend on the dimension pixel of my Image (example 1000*4000). I use real world scale.
haha i guess thats more than one question

thank you anyways…