iPod Random pause in iPod Classic

Hi everybody, I have a 120GB classic, with a few years on its back but up until now completely reliable.
It's been a few days that I've noticed that while I'm listening to it (not with a dockstation, but via the audio connector) sometimes it pauses all by itself, and sometimes even starts the song/podcast from the start.
All without the famous "click" sound associated with the scroll wheel input.
I'm inclined to think it's a jack input problem, as if it mistakenly senses that the headphones has been disconnected and properly stops the playing.
That does not explain why sometimes the tune starts from the beginning, though...

Did this happen to anyone else?

Any suggestions?

Any chance of getting it fixed? (No eh? It's hopeless, isn't it? )

Ouch...! I see, thanks a lot for the replies...
Just a question... does the full restore also delete the device's content? (I noticed that aarond 12 mentioned a resync, too)
It's been a couple of days that no problems occurred, though... go figure...
Anyway I'll try restoring it, if it happens again!

Cheers to ya' all!

Ooh! I don't know if it's of any help but I've also noticed that sometimes, while regularly playing something, the screen lights up by itself! The file being played does not stops or pause... it's just the screen that lights up, even if I'm not touching the iPod itself.
Is that a clue toward some explanation or something?

Cheers
A'