In IE 9 RC or in beta, the embedded video is not shown in the web page. I verified the security settings in "internet options". Did not find any issue. Please find the screen shot below. I am able to view the flash videos in Youtube. But, for some reason, in some sites the embedded video is not shown.
I don't have this issue with Firefox.
I am able to see view the embedded video in Admin account. But not able to view it in Standard account.
@TomWij, Thanks for the suggestions. The Process Monitor hint helped to nail down the issue. When run with standard privileges, it is getting "ACCESS DENIED" for reading the key
When I elevated the privilege to Admin account, it did not have any issue. Then I uninstalled flash, deleted the registry key and then installed flash again. Now, I am able to view the embedded video in standard account.