Preview screen divided in 3 parts

[frederic90206380]

Suddenly my screen is divided in three parts and the lower part is inverted. Did I inadvertently changed a setting ?

[Dave_LaRonde]

First thing to try: purge all memory & caches.  Second thing to try: trash AE Preferences.

Still no joy?  We'll need more info:

FAQ: What information should I provide when asking a question on this forum?

[Szalam]

Did Dave's suggestion help? If not, please provide more information like he mentions and a screenshot of your full interface would also be helpful.