DLC mass effect 3 leviathan problem

http://social.bioware.com/forums/forum/Mass-Effect-3/Mass-Effect-3-Story-and-Campaign-Discussion-Spoilers-Allowed/Leviathan-ladder-bug-13886543-1.html

Solutions:

• Aim straight up and walk towards the ladder. This may take a couple attempts, but this should work. If not...

• Try walking down the ladder backwards. If that still doesn't work and you play PC...

• Go into the menu and reset the resolution to the lowest possible setting. Then switch to windowed mode. This should allow you to go down with no problems.

Also, some info here:

http://answers.ea.com/t5/Mass-Effect-3/Leviathan-DLC-Ladder-Glitch/td-p/21256