Update 2010-09-15: From one of the Snowstorm office hours meetings comes word that some releases of the viewers are not registering the Webkit, Quicktime, Flash, and other DLL’s correctly.I don’t have a fix.
This problem is popping up again. My previous post is here: Second Life Media Plugin Webkit Fail – The comments there have more suggestions and fixes.
Jesica Brown found a new solution I had not heard. Find the slplugin in the SL Viewer folder and right-click it, then set it to Win95 compatibility mode. Thanks.
Threads on the SL Forum are:
Update 2010-07-29 – There is a JIRA: http://jira.secondlife.com/browse/VWR-17087
Windows 7 – 64 bit seems to be having additional problems with this issue. Currently there seems to be no fix. Vote at the JIRA.
Please leave comments in the original post.