SOLVED: UltraVNC Can’t Send CONTROL ALT DEL on Windows 7 64bit or Server 2008 R2 and Screen Refresh Issues

UPDATE: Note that I have given up on UltraVNC and gone to RealVNC because it supports 4 monitors (and I find TightVNC just too slow when the screens are busy).  Pay the $30 for the Personal version and save the time. BACKGROUND: Sooo, I needed a fast VNC that would support multiple monitors so I can run some digital signage and digital artwork remotely on Win 7 64 Bit.  Previously I had used the standard…