An update for the PC version of Borderlands has been released by Gearbox. The patch (finally) improves multiplayer connectivity and adds some graphical tweaks to the game engine.
If you have the retail edition of Borderlands, you can download the 191MB update at the Gearbox website. Steam owners of Borderlands will have the game auto-updated by logging-in to Steam.
Here is the full changelog, taken from the Gearbox Borderlands forums:
Update 2/2 Update 1.21 notes:
– Multiplayer connectivity has been improved; users should no longer be required to forward ports to host or join multiplayer games
– Players who experienced distorted shadows or graphical glitches after update 1.0.1 should no longer experience these issues
– The 3D Vision crosshair has been improved