Pre-steps: Silverlight is installed. Steps: 1. Go to http://silverlight.net/Showcase/ 2. Click on any of the "application" windows. 3. On the resulting box in focus, click on "View Now". What happened: 3. Nothing. Expected result: 3. New page opens with link to "application" website. Notes: Works fine in Gecko.
Still here with 6531.9, r48004
Same happens with Flash videos on http://www.rabosport.nl/ Both sites don't have fully valid (X)HTML, but I have no clue if that is related to this issue. No problem playing these videos in other browsers. Confirmed under 10.5 PPC, 10.5 Intel as well as Windows XP. I'm not 100% sure, but the cause of the problem seems to be the same for Silverlight as well as Flash. If it is different however a new bug report should be filed for the flash bug.
Still here with 6531.21.10, r51075
Still here with 6531.21.10, r52564
Still here with 6531.21.10, r53317
Still here with r53990
Verified with r56431
Closing.