help please game crashes!!

hi, im new and i just installed nba 07, im not very good with this stuff but i managed to install and it worked for 20 mins, then it got stuck so i restarted and since then it doesnt work- when i click the game i get a black screen and thats it!
does any1 know y??

Try deleting the workingdb folder under My Documents\NBA Live 07\database.

ok i did, still nothing...

anyone has another idea why this is happening?.. thanx