Hmmm, I had turned off all the File Path options except for Max(5 or 6)/Cyclcing74 (in Max5 and Max6) so I don't know, and now that both objects are working in both versions it's OK. I am running both versions in 32bit.
But compressing the old Percolate folder(s... I had a few!) did the trick and now Max6 is finding them.
I just upgraded to 6.1.4, but last week Michael Zbyszyński had sent me an improved version of fzero~ so I will have to replace that again :) The original fzero~ (Max 6.1.2) was too inferior to gbr.yin~. I needed to immigrate out of gbr.yin~ and use fzero~ because of gabor objects vs. M4L conflict. I wanted not to use 3rd party if I can help it (like yin~).