I dont need you to respond but I found out the answer and I thought I might share it so that if anyone else has the same problem you will know the answer. This what I did before the problem started:
1. I am running MAC OSX 10.8.2 (Mountain Lion)
2. I down/loaded (d/l) ADOBE FLASH player
3. I d/l Adobe AIR SKX including SHOCKWAVE (thought that MORE is better!)
4. Saw that SAFARI had some NEW EXTENSIONS so D/L a few including:
-Adware Blocker
-Facebook Ad blocker
- Facebook page cleanup
- "CLICK-TO- FLASH blocker (this is the culprit!)
"ClickToFlash prevents the Flash plug-in from running. It replaces any Flash element on a webpage with a placeholder; simply click the placeholder to load the Flash content. ClickToFlash also lets you replace Flash videos from select websites (such as YouTube) with H.264 video. Other optional features include advanced whitelisting". Quote from Safari extensions page.
and a few other unimportant ones in my opinion.
REMEDY:
1. I checked everything about SILVERLIGHT as was suggested and UNINSTALLED SILVERLIGHT.
WENT TO UTILITIES IN APPLICATIONS AND IN SPOTLIGHT WROTE "SILVERLIGHT" and then "MOVED TO TRASH" anything to do with
Silverlight
2. did the same for ADOBE FLASHPLAYER and Went to UTILITIES and removed anything to do with Adobe, including the LOCKED ADOBE FILES
AIR, SHOCKWAVE, AND A PLUG-IN CALLED "DIRECTOR.SHOCKWAVE"
3. THEN UNINSTALLED ALL THE SAFARI EXTENSIONS - especially the "CLICK To FLASH extension.
4. Went to SAFARI PREFERENCES, and under the SECURITY TAB made sure "enable plug-ins" was checked.
THEN:
1. RE-INSTALL SILVERLIGHT
RESTART
2.RE-INSTALL ADOBE FLASH PLAYER (LATEST) 11.2.502.146 here;
http://get2.adobe.com/flashplayer/
RE-START
AND THIS SOLVED THE PROBLEM. NOW WORKING PERFECTLY
MANY THANKS
ED