Okay, I bought an IC puller and contact cleaner. I pulled all the big chips off and cleaned them with a tooth brush and the cleaner. I couldn't remove two small chips hidden on the back lip without removing other parts that I didn't want to remove.

Also, note, becareful . . . I bent the pins on the first chip I pulled because the puller looks like it should grab at the corners but it does NOT. The angles on the puller are for centering the puller on the end of the chip. I was able to staighten the pins.

Also, in case anyone else does this, SAVE YOUR DATA and Programs fist because removing the chips does a re-initialization all user customizations are lost. Fortunately I did save an reload my data.

I put it all back together. It works.

And it seems more stable. No noie when I push registration buttons. And it hasn't frozen since.

But I need a longer period of time and I need to try an extension cord (chord) before I declare full victory.

thanks