Initially had the same problem.
Connected old screen via a micro-HDMI to VGA adapter. Screen was flickering with the factory image on the BBB.
Created a microSSD image to version 6-6-2013
For a brief moment (a few seconds) I could see the UI on the screen.
root@beaglebone:~# uname -a
Linux beaglebone 3.8.13 #1 SMP Wed Jun 5 11:21:00 CEST 2013 armv7l GNU/Linux
root@beaglebone:~# [ 111.339859] tilcdc 4830e000.fb: timeout waiting for framedone
After the timeout event, the turn on the monitor turned black.
Hope somebody got a step futher.