This works on eCS 1.2R with ACPI 2.20 on my Asus A8N-E dual-core machine, but when I tried it on eCS 2.0 Beta 4 with ACPI 2.22 I got the message:
"Unable to open SDDHLP$ helper device driver.
Fatal error in driver: Hit Ctrl-Alt-Del to reboot machine."
YES. the SDDHELP line is REMmed out in CONFIG.SYS, and I made all the changes specified in the Panorama docs.