I have to agree with the 6.1 issue.
My box is an AMD Athlon 64 - 4200+ - Dual Core w/ 2.0 gigs ram.
I have tried Scratch's and Grant's Auto-Idle plugins to no avail.
This has been done with all other plugins unchecked then reboot Hal, select the Auto-Idle plugin, begin a conversation of a few lines, then wait...and wait...and wait. Nada, zip, zilch, nothing...uh..you get the point.
I'm thinking of making a copy of the hal6.uhp file then inserting the Auto-Idle code into their respective locations within the file to see what, if anything, happens.
I have noticed, in past examinations of the brain file that some plugin information was or became "bunched up" near the bottom of the file and more specifically, in areas that they didn't belong.
Hopefully, we'll be able to figure this out.
Will keep you posted on my attempts.