Thanks, I got the slides.
However I don't see any dimming with 2010 (32 bit) on Windows 7
Some things to look at.
I see you used the Template "Pulse" This is ancient and has changed since first offered. In 97 it animated and in most later versions it didn't. I can't see how it is affecting thing but maybe try something else instead of Pulse.
If (as you say) you have 64 bit Office this can cause all sorts of problems and is rarely a good idea. For me 32 bit always works better even on 64 bit systems. If you don't want to switch try File > Options > Advance Disable hardware graphics acceleration, see if that helps.
As agreed I have
uploaded the file for others to look at!