Not really sure if this is the right sub-forum to post my problem, but if I'm in the wrong, just let me know and i'll move it.
Anyways, to the problem:
Last night my soon-to-be 5year old Dell XPS M1710 was logged off as usual (windows+l) and when I logged on, screen was black. I reboot and find the booting looking kinda "stripey" and almost blurry. This goes on until windows is loaded and i'm about to enter the password to log on. Then it turns black again. I can hear the system is working (logon-sound in place) and the screen reacts to changes in brightness, but still, its black.
I reboot -> safe mode -> everything is working fine (except a lot of lines across the desktop and websites "lagging").
I reboot again -> VGA mode -> working fine, but when I try to change resolution or color depth, black again.
And for information purposes, no, I haven't installed any new drivers/software recently. Nothing that should effect the graphics-card in quite some time.
And yes, I realise im not exactly a technical genius to say the least, but any clues as to what might be causing this and/or a way to fix it will be greatly appreaciated!