Blowing out the computer case worked! I now have XP 32 bit The downgrade was successful! I'm typing this on the desktop with the nice head - level 28" screen. My neck is saved!
Who knew six month of dust buildup was such a bad thing!?
I will try and force myself to do it more often!
Thanks for all the input, NAN and Seedjar and others.
The rest of ya, if you haven't done it lately, blow out your PC today!