This is all I could come up with.
So I was at the Salvation Army browsing through records and I spotted a microwave just like ours for $15. Ours had been acting up and about 6 months ago I yanked out the touch pad and put it back in which fixed it for a while but it started acting up again. I just now swapped out the key pad and voila ... all better. I know this may be boring beyond belief but I saved. I thought that mattered to you. Did you think every post was gonna be a freakin' party?