Unplayable Lag due to Agent Issue (fix maybe) Not really seen this posted here much. I was experiencing some completely horrendous lag in the past week or so. I'd read a lot of stuff about Agent.exe causing the problem, causing multiple instances of D3 to be running. Since I read that I've always used Task Manager (XP) to stop Agent.exe and close the extra instance of D3 running. That seemed to work for a while, then the past couple of days even that wasn't working. Well finally today nothing seemed to be helping. So I re-named my Agent folder and restarted the game, and it went through the motions of re-installing Agent. Maybe it's coincidence, but since I did that the game has been running perfectly. I don't even bother to close Agent any more. This is for XP. The path for Agent that I renamed is: C:\Documents and Settings\All Users\Application Data\Battle.net\Agent I just renamed the Agent folder to "old_agent" so the game thought it was missing. Safe enough if I had a problem I could just restore it. For what it's worth. You're mileage may vary.