Hi all,
Looks like the same as this:
Basically, for most people who see that (if not all), it is the same root cause: the latest patch introduced a graphic engine upgrade, which means the System Requirements increased, and sorry to say, your computer is now below the minimum requirements to play the game. You can check the minimum here (and there is a link therein to a full list of supported video cards):
That is an unfortunate possibility for any online game, as the game evolves, at some point it will require too much out of older computers.