Screen Sharing doesn't work after updating to Remote Desktop 3.6.1

Question

Hi everyone!
I hope others can help.  We just noticed this at two different schools today after upgrading to 3.6.1.  We upgraded Admin and Client Apple Remote Desktop to ARD 3.6.1 today and now we cannot share our screens with the clients.  It turns black, hangs, then returns the client to its original desktop. 
We tried from a 3.5.1 admin machine, and it still works fine as it used to.
We feel like the issue is 3.6.1, but cannot find any support for the issue online. 
Other troubleshooting steps:
1) emptied user and system Caches
2) restarted all units
3) tried 3.6.1 admin to 3.5.1 clients, no luck
4) tried 3.6.1 admin to 3.6.1 clients, no luck
5) checked for loops in the network, nothing.
We can perform most other tasks like controlling the clients and copying files, but not screen sharing.
Thank you for your help!

Answer 1

All right!  Total workaround here, and no fix, but at least we're able to Screen Share in ARD now.  This is how we downgraded to 3.5.1 Admin in Apple Remote Desktop.  The only hiccup that may not work for most is that you must have an older Remote Desktop file on hand. (hopefully from a computer that was not upgraded which was our case).
Here is what we did...
1) Login as an admin.
2) Throw out the Remote Desktop app (in Applications)
3) From another computer, drag in an old Remote Desktop app into your Applications folder
4) Throw out the "RemoteManagement" folder inside System/Library/CoreServices
5) From support.apple.com/downloads, download Remote Desktop 3.5.1 (both the Client and Admin installers).
6) Run the Admin install first, then the Client Install.
I did the above steps in two schools in a different order, but I wrote it this way to make it more streamlined.  I never had to re-enter the Serial # or anything.  Once I did the steps above, it just worked again.
Hope this helps you!