Winamp 2.9.1 shows visual glitches

Winamp 2.9.1 can be installed and works fine (with sound quality depending on general quality of AC97 sound in your VM).

However, dragging and resizing the playlist window causes several visual distortions along its frame as shown with red frames in the attached screenshot.
Also the time display (track name) on the Winamp main window is somewhat incomplete.

This behaviour exists as long as I have tested Winamp with ROS, at least since 0.4.4 or so. It has not changed imho since then.