RE: How to fix stripped plastic screw holes?
I usually shave a small length of plastic about the size of a tooth pick and superglue it into the hole. Others have filled the hole with stuff like JB Weld and redrilled the holes after it dries. Still others just apply superglue to the screw, tighten it as much as possible (works best if the hole is not completely stripped out) and let it dry in place.