my n900 has started to act weird a couple of days ago, the screen has gone completely bonkers as there seems to be no correspondence between the point of the screen that i touch and the point of the screen that is actually activated, e.g. i click on an icon at the bottom of the screen and another icon is actually triggered, or i click on "send" at the bottom of the screen and a random message at the centre of the screen is actually selected

when it's like that the device is basically unusable as i can't make phone calls, send messages or anything else

then suddenly it goes back to normal, then a few hours later it starts again and so on. Rebooting seems to have no effect whatsoever.

Do you think it's a hardware or software problem? i havent installed any application in the last couple of weeks so there's nothing obvious i can think of...

thinking of reflashing but i kinda wanted to avoid that so if anyone has any advice that would be much appreciated, thanks