Lockup/Ghosting

[MoonlightBlossom]

Since the newest patch; my game has been subject to the occasional lockup. Sometimes it's just the game; sometimes it's my computer entirely. However, I know that it is WoW; as the lockups don't begin until after the game is open. (Sometimes, right at the login screen.)

Updated drivers to rectify the problem, still happens.
This morning; attempted to login, and the freeze forced me to manually close the game.

To that end, I've been "in-game" for thirteen hours and counting; because of this technicality, I can't get past the realmlist.
So if anyone has been attempting to whisper me for the past thirteen hours without response; I'm not ignoring you - I'm just simply not in the game.