I dunno I get hard freezes on my computer, only happens when playing ffxiv. It seems very random, sometimes within a couple of minutes of loading the game, generally I've got no problem running the game for hours. When it does happen it does not seem to matter where I am, although happily it's not happened to me whilst in a dungeon yet.

Generally the client freezes first then ~5 seconds later the computer freezes and I need to restart.

Am running on an i7-2600k, 8gb ram, gtx 460, 7200 rpm hdd desktop with win 7 installed, even after updating all my drivers I'm still experiencing the problem. I'm going to be looking around for the crash logs, so will be keeping an eye on this thread.