First, update your LR 2.3 to 2.7. The update is free and should help with some things: http://www.adobe.com/support/downloads/detail.jsp?ftpID=4677
If after updating Lightroom, it doesn't start working, initiate a repair install of Photoshop CS6.
First, update your LR 2.3 to 2.7. The update is free and should help with some things: http://www.adobe.com/support/downloads/detail.jsp?ftpID=4677
If after updating Lightroom, it doesn't start working, initiate a repair install of Photoshop CS6.