Been playing tonight and my Guild Wars crashes out with a serious error bullshit every 15 minutes. After this I say blah blah send error report and restart guild wars but theres an error, and Gw.exe is unable to access the Gw.dat file because the old GW process is still running. So just incase anyone else keeps getting this, just open your task manager and go to Processes. End any Gw.exe processes, I often have 2 or 3 for some reason, and it should work fine. Maybe this is blatantly obvious and maybe its just because I'm tired but it took me a while to clock how to solve this error lol.