I've begun to have a few problems with the S key

[philipco]

I've begun to have a few problems with the S key not typing when I hit it in normal typing. It still works, but i have to hit it more firmly for the key to strike and it is beginning to bug me.

any experts have a solution or has anyone ever had a similar problem?

[Wcrocker]

I had a similar problem recently with the Q key on my M200. Some compressed air seems to have taken care of the problem. You may want to give that a try before digging deeper.