I encountered what seems to be a fairly common problem with plugin compatibility - my featured image slider was static and therefore all of the div tag featured content was layered on top of each other.
After following the instructions provided in another post (disabling all plugins, re-activating, etc.), TWO things happened:
1. I got numerous red bars indicating some kind of php line error and I lost about half of my plugins. POOF.
2. I was able to determine that my theme and Formidable Forms Pro plugin has some sort of compatibility issue. This is a MAJOR problem - of all the plugins, this one really is crucial.
Any ideas toward a solution?