Attempts to boot OS install disk are prevented by launch of Acronis Loader--RESOLVED

I have ABR10 installed on the Windows 7 system of a dual-boot Vista64-Windows7x64 workstation. As far as I can tell, both the Acronis program and the Windows 7 operating system work fine.
However, there is a problem on my Vista 64 system which I need to address by booting up Vista from its original installation disk--but I can't do this because the ABR loader launches whenever a boot function is initiated and with no recovery disk in the CD/DVD drive, Acronis immediately opens the dual boot system selection screen.

How do I disable the Acronis Loader so that I can again use my CD/DVD drive as a normal boot device?

UPDATE: I uninstalled ABR10 using the Acronis cleaner utility. After three or four system reboots, the Acronis loader still appeared but with enough of a time lag for the CD/DVD drive message "to boot from CD/DVD press any key" to appear. This finally allowed me to boot from my Vista64 installation disk. Sorry for bothering everybody.