Hi, Myst_88

Thank you for your help.

I finally solved this problem. It was so simple.

Preferences - Display - Perfermance - Fast Interaction - Off

That was the 'key'

Hi,

I am studying maya 7.0, but from beginning I got a problem already.

I drew a car (top, front, side), and imported these images into Maya. I set up all views correctly. Everything works fine...