Arrow Keys Stopped Working

[tardisoutfitter]

And also occasionally the spacebar. I did not get water on it I believe. About a week or two ago I left it open at home while I went to and audition, and I came back and they no longer worked at all! This is a problem since I do a lot of graphics.

And if this helps...

Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 800 MHz
Boot ROM Version: MB41.00C1.B00

Thanks, everyone.