10.7.3 incompatibility?

[eazywig]

I'm using a BVU195 to connect a 1920x1200 display in portrait mode to a mid 2010 iMac 27". After applying 10.7.3 patch I faced the problem described in this forum. All connected displays turned to blue.
Starting up the iMac in safe mode and launching display preferences resetted the orientation of the display connected to the displaylink adapter to landscape. After a newly restart the displaylink adapter can be used again, but only in landscape mode :-(.
Nevertheless thanks for posting this solution!!!