Losing quality of swf while running?

http://www.inertia1.com/ver1

Ok, the above page comes up ok, but after playing around with it for a few seconds the quality of the flash automaticaly jumps from high to low? why? I cant seem to figure it out.

by the way only click on the “websites” box, its the only one I’ve done and the others will just get stuck.

I don’t want to continue making more pages if Im doing something wrong you know.