Please help, I am at my wits end over this DRIVER_IRQL_NOT_LESS_OR_EQUAL error and the subsequent crashing of my system every time I try to play a game. I have updated my graphics and sound drivers, done a memory test, virus scan, spyware scan, replaced bad clusters, tried playing with my firewall disabled, and still something is causing my system to shut down. I am on WinXp, sp2 and have all the latest windows updates. The following two errors show up in my event viewer after crashing: Error ID: 32003 The Network Address Translator (NAT) was unable to request an operation of the kernel-mode translation module. This may indicate misconfiguration, insufficient resources, or an internal error. The data is the error code. Error ID: 1002 The IP address lease xxx.xxx.xxx.xx for the Network Card with network address has been denied by the DHCP server xxx.xxx.xxx.x (The DHCP Server sent a DHCPNACK message). I will try to attach my minidump files in case someone can make sense of them, and I would greatly appreciate any help I could get. This only occurs with one program (game, World of Warcraft - other games and Internet work fine), and I have tried uninstalling and reinstalling and even that didn't work. Thanks in advance.