DDJ-SX Acting up

So until a few days ago everything was working fine but then my DDJ-SX started doing weird things.

For instance it thinks the vinyl buttons are on when in reality they are not, when I play a track in deck 2 where I have the volume DOWN I still hear the track in the master out... When I turn the volume up and down again it fixes itself. This also goes for the censor button to randomly activate and thus rewinding tracks.

Some background info: SX is 3 years old, never taken anywhere just sitting on my desk at home where I record my mixes. Never cleaned it with anything moist and never spilled anything like cookie crumbles or a drink on it. 

Anyone know if this is just some Serato software / driver / pc issue or if my SX is fried on the inside? (Which I don't hope)

Thanks,

Bart