Oh ok on the drive or the c64? Which would need to be diasabled? :@) I'm on a website that shows how to use a 27128 inplace of a 2764 with a bank switch? It appears as though the little 28 to 24 pin adapteds can be used with the switch... Sent from my iPhone On May 23, 2009, at 12:12 AM, "Dan Gahlinger" <dgahling@xxxxxxxxx> wrote: > lots of copy protections don't like jiffydos, so you have to disable > it > > On Fri, May 22, 2009 at 11:56 PM, Miraglia, Walter > <Walter.Miraglia@xxxxxxxxxxx> wrote: >> Why would one want to dissable jiffydos? >> >> Why the switch? What kind of trouble can one >> >> Get into if one did not have a switch and left it on >> >> All the time, any examples? >> >> >> >> J cheers guys, and >> >> >> >> Thank you… >> >> >> >> By the way >> >> >> >> I just successfully used one of my 28pin to 24pin boards… >> >> For my 1541 upgrade, >> >> >> >> I have a ton of LED’s so I used their leads as pegs to plug into >> >> The 24 pin socket… the legs are thin flat and pretty rigid… >> >> >> >> J the boards have a jumpter that allows you to select 2764 or 271 >> 28… >> >> >> >> >