Miraculous worked for me:

I had a similar trouble and I don't exacly how I fix it up. It's weird but it's true.
Let me say what I think that solve the problem (Anyway I'm quite sure It was a software problem):

Refreshed the P.R 1.3 with the software updater. At first I tought It was useless but then I let it turned on, offline, for like 30hrs without touching it.After that everything was working (slowly) fine! I mean after my screen star to work again, without problems, I noticed a slowlier performance. Just that.