Share your experience!
When I open my TX1, I notice the keyboard has made contact with the screen and there is an in-print left on the screen.
Another thing that's not too clever about this laptop.
I checked my TX1XP (closed and using a lamp). The screen is sunk in its frame, the keys are almost absolutely plain and there are is a big enough extra gap when closed. So this is not a general problem.
I had this too on an other notebook (other manufacturer).
Use a lcd cleaner on it, it will go away.
I have seen this happen on other VAIOs, and I agree not too clever