Hey all,
For a while now, I’ve had this strange little bug relating to nearly every flash game I play anywhere. This was particularly annoying playing DTD for them badges.
I haven’t found any information relating to this bug, so hopefully someone here has an idea.

The top is an unmodified picture of various games, the bottom highlights where the glitches are.
They generally appear around most moving objects, but not all, and someones nonmoving objects. As you can see, the weird bug is a transparent, rectangular screen behind some objects. Sometimes they flicker, sometimes not. I’m almost certain that they represent the bounding box of the objects
Win 2k SP 4
AMD Athlon XP 2200+
NVIDIA GeForce MX 440
Firefox 2.0.0.7 (Appears in IE too)
Flash 9.0.47.0
(Yeah, some of my cards are a bit outdated, but the glitches didn’t appear before with the same stats)
Any help with this would be very much appreciated.