i went through the same issues.. these two things helped a lot. not perfect, but close. i still have to press a bit harder on my n key..
http://forum.ppcgeeks.com/showthread...light=keyboard
post 8. helps..
you will have to read through it a bit to understand..
http://forum.xda-developers.com/show...=398871&page=4
this is page 4 where the product is mentioned.. but read and learn, start at the beginning..
product is Caig Pro Gold. you can get it at radio shack.. it is not cheap, but it does fix the problem..
and yes it took me a while to find this stuff again!
beers