Videos/media on prims from my YouTube chanel, My Profile and SL Search recently appear as black screens on SL Viewer (but work fine on Firestorm).The videos/media used to work prior to this. Google Chrome browser already includes Adobe® Flash® Player built-in. QuickTime & Adobe Flash are re-installed & updated (on Windows 7). I have tried uninstalling and reinstalling SL Viewer but it does not make any difference. I would appreciate your help. Thank you