The keys on my keyboard pop off and on rather easily with just a little bit of effort. I have removed the all of the letter keys from my laptop, and removed the little casing? they sit in, and have cleaned out what I can. I inspected the rubber piece underneath the key and it appears to be fine.

I am leaning towards my best option is going to be replace the entire keyboard. To bad I have 0 funds right now, will have to wait, ah'well - thanks.