So a few keys on my keyboard are unresponsive. Well not unresponsive, but sometimes I have to press twice because I didn't press on the right angle. It's a new lenovo Z510, and it's very frustrating because I type quite fast and continuously, and when I'm writing an essay it's annoying to constantly have letters missing. I'm particularly talking about the letter 'e' and 'c', I have to press in a particular angle to make it work.
any ideas on how to fix this?