I'm having problems getting anything to work when I click on a user's name and then scroll down and click on something in the drop-down menu.
These are some work arounds to help get you to some places ...
Get into your PM page: GB's method will work to get you into PMs - click on User CP on the blue bar and then click on List Messages.
To get to the Advanced Search page: Click on Search on the blue bar, then type in a word backwards and search on that ... for example, type in the word LIST backwards (please - don't anybody type it in here or that word will no longer work!) or just any 4 random letters that do not spell a real word ... this will get you a message that nothing was found and will have you on the Advanced Search page. Just remember to remove the keyword you originally searched on.
To get to a member's Public Profile page: Follow the instructions above to get to the Advanced Search page. Do a search for the member's name and search for "posts" - this will list all of their posts. On the line that says, Posted By username - click on the user's name.
"It ain't what you don't know that gets you in trouble. It's what you know for sure that just ain't so." - Mark Twain