Colorpicker problem on Windows7

Michel's icon

When using Max6, I don't retreive the new colorpicker. When I click on a color (i.e. background) for an object, the old colorpicker (Max 5) appears (whithout tabs).

After repairing, then removing and reinstalling Max, the problem remains.

Max5 is still installed on my computer.

I use Window 7;

Note : with Mac OS it's OK (Max5 is still there too).