for those wondering, i figured it out.. there was a file called xlive.dll in my gta 4 folder on c drive, remove that file from there and then it will sign you in and plays on multiplayer. another quick question, how can I tell if the mod (cars) is gonna cause my game to crash or has not been updated? Is it just trial and error? To see which ones work and which dont? And also, what is dsound? sorry for the questions!