Tablet Functions Wonky in x60--where/how to repair?

[shownomercy]

After bumping my laptop around this weekend, I noticed that the pen function is pretty messed up. While using the pen registers as drawing or clicking, it also registers a lot of noise in the form of extra drawings/clickings where the pen is not located. Otherwise the PC is working fine--just having issues with the pen.

Does anyone know a) what is causing this issue, b) if I should replace the entire screen myself (I am pretty handy with this kind of repair but not that knowledgeable about the actual electronics involved with the wacom), or c) where I can send this to repair?

Thanks in advance for any help--I really miss doodling =(