Sizing and Resizing problem

Using Windows Vista, in the default Vista theme, when resizing an object, face, or edge, the screen flickers black and grey, and the lines go from the white color to red, so that everything flickers black and red. It is absolutely impossible to model anything this way. In the Older theme that’s available, this problem is not there.

On another note, the dolly seems to run MUCH smoother under the vista theme instead of the old theme. The old theme does not flicker when resizing, but jitters when rotating.

Please, someone help me to fix this.