Guild Wars 2

I’ve the same problem too, as many guildmates.
I’ve 4 guilds, chat works in first 2, last 2 are bugged. I’ve tried to leave a working guild as suggested, and join again, this is what happened.

Before

A – Ok
B – Ok
C – Bugged
D – Bugged

After

B – OK
C – Fixed
D – Bugged
A – Rejoined, Bugged

It seems I can talk only on the first 2 guilds.

After last patch you can only play in window mode on Windows XP 32 OS. If you start game with fullscreen mode, or you switch to it later, screen freeze and you’ve to kill process or reboot computer.