Problems Uploading Videos to Windows Live Silverlight Streaming when Beta 2 Installed?
If you have Silverlight 2 Beta 2 Installed and enabled, you will not be able to upload videos to Silverlight streaming. That's because the upload component is written in Silverlight 2 Beta 1 and has not yet been upgraded to Beta 2. The problem manifests itself as a disabled Browse button on the "Upload Videos" page.
I was trying to upload some videos for the Silverlight TechFest this Friday and kept running into this issue. I figured out the solution by digging around in the JS and seeing that the field gets enabled only when the upload component init/create is successful. I also saw that there's a down-level uploader available.
The workaround is to disable Silverlight (temporarily!) in IE, by going into Tools-> Manage Add-ons -> Enable or Disable Add-ons
In the drop-down, select "Add-ons that have been used by Internet Explorer":
and disable Silverlight:
Then restart IE. When you've completed your uploads, remember to enable Silverlight.
The nag screens in Live get annoying, but this is a temporary solution just until they update to Beta 2.