Had mixed mode Arch/BG (av only) going and was monitoring it from work via logmein, when after a bg I noticed it wasnt doing anything. Took my lunch break and reinstalled HB, all plugins, kicks svn tree and am still having the same problem. It appears as though they work fine separately.
questing bot --> load a profile then do your mixed mode stuff (ab / bg)... it looks like you still have an old profile in the 'queue' cheers