Just to let you guys know, that first light continuously crashes when either:
'Load snapshot' - kills the program
'Open Project' - crash window appears but is still open (no video visible)

This is a bit of a pain but you can still open files and make the changes all over again.

Everything is running latest firmware\drivers\updates.

Both of those functions are working fine (I have the same setup.) I suggest you file a trouble ticket with support.

Support Center (http://supportcenteronline.com/ics/support/default.asp?deptID=614)

I have the very same problem, at certain times any interaction with the UI causes crash.

I have the same problem as well, and have reported it with no solution yet.