W7/Vista Client - Fact or Myth?

I can't really confirm what Larmie said. Everyone I know that plays on Windows 7 in JMS hates it. In fact, lately, I've been experiencing many issues with JMS. I don't have XP to test it myself, but I've had parts of in-game windows disappearing, random lines appearing when I attack (as if the game were buggy), and a whole bunch of random crap. Maybe it has to do with certain programs people have or certain updates some have that others don't.

Or maybe the fact you run the game over VPN. I have plenty of friends on Vista/7 and as laggy and dc-prone their game experience is, they're still doing the same things us XP players are doing.