One Note Playing Intermittantly?

[tinyrubberchicken]

Hey,

I just got a used Virus KB off eBay and everything works great except for one note, the second G# up from the left. It plays at times but sometimes I have to press it a couple times or use extra pressure. In other words, using it for touch-sensitivity is basically impossible.

I was wondering if there was any way I could open the keyboard and perhaps clean the keys or use some compressed air to fix it. If so, could somebody give me a brief overview of how to go about doing this?

Thanks...your help is much appreciated.