Weird Flash Player problem

I’m having an annoying problem with Flash Player - an image of the Flash video, program etc. remains visible in either the black or the white parts of the screen even after I kill the plugin-container or close the browser. For example, I changed the desktop background color black, and in the center there appeared the last frame of the last Youtube video I had watched.

I’m running Flash Player on Suse 11.4.

Here’s a screenshot…
…which was taken with a camera because of this:
Imageshack - flash2s.jpg

Any help would be appreciated.

(I apologize for my not-so-fluent English.)