Yosemite and Parallels 10 with Windows 8.1 connecting to remote desktop (RDP) session

I recently upgraded to Yosemite beta and updated my Parallels to 10. I am using a Windows 8.1 VM. I use this VM to connect to my remote work computer. Previously I was able to use the Parallels menu Devices->Keyboard->Ctrl-Alt-End key combination to invoke Ctrl-Alt-Del on my RDP machine when my session (work computer) went to the screensaver which requires a password to get back in. This feature/keyboard send no longer works with my Yosemite/P10 configuration. Any ideas? I've tried all the Keyboard send combinations listed in the pulldown.