It seems the roll down ad stops me from clicking on the private message income to view messages. Anyone else having this problem? I'm using Safari.

Generally, whenever the rolldown ad shows up for me, I have trouble clicking on a lot of links in that general area so I end up going back a page instead. Google Chrome here.

Do you mean the peel-down ad? If so, take a read here: http://www.webhostingtalk.com/showthread.php?p=5454887#post5454887
We've been trying to identify/squash the problem.