I have got same problems for a few months already and searched solutions on Internet without any luck of success.
It keeps flickering and once it is heated up, it turns into shaking heavily but the extended screen is perfectly fine. I need to fold it up (or just put it into sleep mode), go for a coffee for about 10 minutes, come back to work and another 20-30 minutes later, same thing happens again.
Is it designed to remind people not to sit too long??????
Please release an update for this costly gadget.
Thank you MS,