stupid behavior: shortcuts aren't work, viewport problems

[Simon]

I had a very weird problem with max: from one moment to another i couldn't use my self defined shortcuts in the uv editor, didn't saw my selected uv faves until i rotate the viewport and when i zoomed the object more far or less to the camera (via mouse weel) i can't saw the result until i translated the camera in the viewport.

The solution:

My object was having 4 textures on it. I renamed the texture files with my windows explorer so max can't find the files. If this is happens, Max gives you a error message for every lost texture. I got 2 of this errors and kicked them away. Two of them was hidden behind max. That causes all the problems! As i found them in my task bar and clicked them away all problems was solved.