Well I spoke a little too soon. The Delayed Start does improve the boot time, however if Jabber is set to start automatically when you login to Windows (the default) then video does not work, presumably because the MSI service is not up when Jabber starts. If I restart Jabber then the video works fine, but that is obviously not a solution.
I guess we'll have to wait for the next version of MSI and hope that it helps.
I have a customer who is having the same issues with boot times. They have 64bit Windows 7 ssd machines and when the above is installed it adds 90 seconds to the boot up/login time. And are about to complete a company desktop refresh and this is holding up their project.
Do cisco have a date when they will be making the fix available for download, or is there a way to get the MSI 3.2.3 before then?