HAve a problem and I am not exactly to sure where to look.
This effects Youtube and and a bunch of other flash sites.
I used to be able to watch online content with no issue when I upgraded to Vista Business. But I had it in my mind I was going to do a total clean install.
Ever since, no flash content. I know I have installed it. I double and triple checked. I can find it in the system32 directory. Registry keys are there. I also installed the current version of Java as well.
I checked my settings in my browser to see if there was a switch. But I am not seeing it.
Anyone have a better clue where I should look?
The machine is rock solid. Inspirion 9400, 2GB Ram, Duo Core T7200 2K processor. So I am not thinking this is a hardware issue. This was working when I just did the upgrade path.
Cheers!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic