EA has released the need for speed underground 2 v1.2 patch today. You can get the patch here, http://www.eagames.com/official/nfs/underground2/us/patches.jsp.
Improvement:
Increase performance on NVIDIA 6800 series cards running on high resolution.
Bug Fixes:
Game crashing under certain conditions in Online Lobby for game running on Windows 98 and Windows ME.
An internet connection is no longer required to host LAN games.
A change in the UI relating to people convicted of cheating. People convicted of chronic cheating will no longer be flagged, as there was a bug early on that would convict people of cheating even when they did not cheat.