Hey Markus, what means "probably"? Didn't you guy try this configuration at Emagic? You should have! This is a standard setup! So, what configuration do I have to buy when I don't want any trouble using a sawtooth-G4? I'm talking about using AMT8 from EMAGIC (!!!) not 3rd-party-stuff and I think EMAGIC should be able to give a definite advice! It's strange enough having to deal with a dongle that uses a format that is technically outdated... Best regards Marc ELECTRIC LEGOLAND >Markus Fritze wrote: >Probably, because the Mac only has 2 USB ports. One is used by the keyboard, >the other by the AMT8. You may try to connect the iMate to the port at the >keyboard, but AFAIK this is not very stable. USB is not like ADB, where you >can daisy chain all devices. It is like a 10base-T network, where _all_ >devices has to be connected to the computer. Hubs split the USB to allow >more devices to be used, because the computer only has 2 ports. The keyboard >itself is also a hub, so you can connect the mice directly at the keyboard. >The problem is, that the keyboard is a passive hub. This means: it has no >own power supply. Because USB also is the power supply for the devices, it >means that you can't connect USB devices that needs more power to the >keyboard hub.