I just tried to update my Timefactor from 1.1 on OSX 10.5.4 and 2 PCs with XP SP2. On the mac, I get no indication that a device is plugged in. On the PCs it shows a device being plugged in and wants to install software for it. I installed the software on one but not the other. Either way no luck. I tried calling tech support but I guess they don't take calls (grumble grumble) and can only help me through email. This irritates me for a pedal I purchased a few days ago.