is anyone else unable to log on to bnet in patch 13? it seems that they are either taking a very long time revamping bnet, or my patch is bugged.

It's the same for everyone; they're updating the servers.

As of last night, once logging on, I and many other users experienced a variety of problems including:
-lagging out of most games
-freezing (usually in create/join custom game menu) (both game but no mouse and complete freezing which makes you turn off you computer)
-USER_CREATED_MAPS_NOT_ALLOWED
-and 'no server available' though the last problem was corrected and replaced by the above

http://www.youtube.com/watch?v=y-hsh6G3dcc
fun with patch 13

when im playing sc2 it minimizes every 4-20 minutes and half the time when i maximize it again it blinks black, causes a shit load of lag and crashes, anyone els?

and this also happens sometimes when i minimize it deliberately.

Check your computer for programs that may be running and auto-minimizing SC2. I haven't heard of anyone else encountering this glitch, but SC2 does seem a bit touchy about minimizing and maximizing. As I said before, it's likely to be another program on your computer that minimizes fullscreen programs when something happens to it.