Windy Sideways

Mac OS XMinimum RequirementsRecommendedInternet Connection*:Cable or DSLCable or DSLOperating System:Mac OS X 10.9 or betterthe latest official Apple release of OSXComputer Processor:1.5 GHz Intel based Mac2 GHz Intel Core 2 Duo or aboveComputer Memory:1 GB or more4 GB or moreScreen Resolution:1024x768 pixels1024x768 pixels or higherGraphics Card**:ATI Radeon 9200 and aboveOR NVIDIA GeForce 2, GeForce 4ATI: 4850, 4870OR NVIDIA: 9800

My Mac OX 10.9.3 does not recognize all 3rd party viewers accept SL. What am I doing wrong? They did before I HAD to upgrade to 10.9.3 What did I do wrong?