I was playing FFXIV the other day when my sound suddenly crashed. I finished my battle, logged out, and restarted the computer. My sound was restored, but I am now experiencing terrible lag/stuttering trying to play the game. It's almost like every other key press is stuck or ignored.

I checked pcpitstop, and my internet bandwidth and ping are great. I uninstalled and reinstalled FFXIV to no avail, and I turned down the graphic settings. I optimized my HD. It doesn't sound like this is a server-side lag, or I'd hear more complaining.

I play with:

Intel Duo Core 2.13GHz
4GM RAM
ATI Radeon HD 3870
Win 7 64bit

This constant lag/stuttering makes battles frustrating and almost impossible. Also, it sometimes makes me run in circles or take a second or two to actually stop running.

Any help would be appreciated!