Hey absynth,
That's the same problem I have with mine, only on the vertical and not the horizontal. In exactly the same place too so I guess I have the same fault
It does not happen all the time though, intermittent. My only concern is my TI is probably just over 2 years old now so well out of warranty I should imagine and whilst I still have all the original packaging, if it has to go back to Germany it's a pretty hefty bit of kit so It'll prob cost a small fortune to ship / repair! Anyone know if there is a UK service center I can take it to?
Cheers.