Forever Spinning Beach Ball on Login (OSX Lion GM)

[jcnetdev]

I have 3 monitors hooked up. One (an apple 24inch) through standard mini-displayport and one (an apple 21 inch) through the displaylink usb.

There's an extremely serious bug that is causing osx login to stall when the Displayport USB (BVU195) is connected.

System Setup:
- OSX Lion (GM)
- Mac 1.7 Beta2 drivers

Repro steps:
- Set up multiple system user accounts on your mac (e.g. user1, user2, user3)
- Log in as user1
- Use OSX switching to log in as user2
- Log out of user2
- Try logging back into user1

Error:
- OSX Beach ball will spin forever.

Workaround:
- Unhook diamond adapter and try again. It works when disconnected