Assume you are talking about the security check on the last ad. Since you been around awhile, I also assume you have had success in the past so you do know what you need to do, but, for some reason, the security check is not working for you. Does it work for you when you do the $.02 paid email?
So you know that you have to put in the wording exactly as it's printed (ie with Caps where there are Caps; lower case where lower case; puncuation when it's shown -- but no quote marks when it says put in the wording in quotes.
If you can't read what they want entered, click the security check refresh to get a new code. There were a few security questions that ask for what a product is/means etc; I never know what they want, so I just refresh the link and get instructions to put in some specific wording.
I have not had problems today or in the recent past. But if I have a problem with anything, the first thing I do is to clear my cookies and temps and try again. Then I check my ad and/or pop-up blockers (if you have toolbars, there may be imbedded blockers in the toolbar.) If all else fails, I close my PC and reboot. Sometimes does the trick. You could also try another browser.
If none of this works, ask yourself what you have done to your PC just recently (since the problem started).