Home button malfunctioning on my PSP-3000. Anyone else experience this?

[A_Locomotive]

So the last few nights my PSP has started doing something extremely annoying. Randomly during game play it will act as if the home button has been pressed, screen going gray and asking if I'd like to quit. It happens completely randomly with no seeming pattern or amount of time in between, sometimes it will do this and then do it again within seconds other times it won't happen much if at all. It has also recently had a few read errors with the UMDs, all on mint clean discs. I'm wondering if they are related. So is this something I can fix or will I need to contact Sony do you think? It should still be under warranty if its a 1 year warranty like I think I recall it being.