Anyone know if there's a non-destructive way to remove the plastic screen cover for the X8100

Got a bit of dirt which has managed to settle itself under the screen cover in the bottom left quadrant of my screen, you can tell it's definately dust/dirt rather than damage because it quite clearly looks like a tiny bit of dust with the screen off and a flashlight shining in it's direction; not to mention it's at a higher level than the pixels themselves when you look at a side angle.

I've seen the 6 screw covers, 2 on each side, and 2 on the front, but I don't want to try and just dismantle the screen without any idea what Im doing as I dont want to damage it.

I did take a quick look at the ESM, but it doesn't mention if the screen needs any work, and just covers dismantling the base unit; I can't imagine this sort of machine would have a 100% locked screen you could never get back into though as that'd be massively wasteful!