Thought I would add this stuff so it might help someone else.

Problem: No servers showing up in server list.
Fix: Update to v1.1 patch, I use the crysislauncher.exe in the bin32 folder in the crysis 2 directory. Note it crashed on me the first time I tried it worked the second time. (my EA downloader thought it was a good idea not to do that)

Problem: Flickering light most outside lighted areas
Fix: Disabled my crossfire on my two video cards.

That is all I had but if people want to post stuff like this I will try to edit the OP to list them.