On reboot, the system files are in the installation folder, but the uninstall option is not available under Add/Remove Programs, and the program is not located in my Start Menu - Programs folder.
My Q10 worked fine with Cakewalk Pro 9 on my old Athlon, so I don't know what the deal is.
But when trying to update the firmware for a few phones there is a new process which was introduced with the 4.0 release of UCS.
This process allows the device to be manually pointed to a Polycom hosted web server distribution point on the Internet to download and install new firmware packages from.
The Polycom SIP phones support a few different methods for software updates, most commonly utilizing a central FTP provisioning server so that all devices will check a single distribution point for configuration changes and new firmware images.