Game wont run , techie help please

[Raven Vale]

OK , awaiting the Euro release of WoW I console myself by creating yet more characters in LoD , now everything has been fine , well , since forever with this game . Last night I turned off the PC , today turned it on and fired up the game , all I get is a black screen . I click the shortcut and get a black screen , causing me to reset the computer , nothing else can get me out of this . Putting in the disc and clicking on the run game I end up with a black screen , I have no idea what is going on , any ideas wold be helpfull cheers . The funny thing is I bought my 2 oldest daughters a PC last christmas 2003 and thought of putting LoD on there , I tried with exactly the same results as I am getting here , a black screen and no further , eventually giving up and not bothering , now I am getting the problem , weird .

edit : Just updated the new NVidia drivers , only 2 months newer than my old , still nothing , still hangs when I try to start .