Skybear, one thing you can do to narrow down the issue is go to your control panel, System and Security, administrative tools, view event logs. Go to the application logs and you should see a log of the crash. The key is that it will tell you what module is causing the crash. Under my application error details it constantly would result in 'Faulting application name ffxivboot.exe. Faulting module name atiumdag.dll. It seems as many ATI users have that same problem with the atiumdag.dll and simply updating the driver has not been working, which is why the driver sweeper is needed. Check and see what module is causing the crash and it might be easier to solve the problem.