Dear Gurus, Mr Hill said: "My Macally USB card worked first shot. Mine's Cardbus. I'm using 9.1, 2400/180 80/4." And Mr. Getz asked: "I didn't mention this the first time,but yes you must do the cardbus upgrade. i assumed you have done that, correct?" Cardbus is enabled. I've a segmented drive with 7.6.1, 8.6 and 9.1. I do most of my work with 7.6.1 because its fastest but use the other OS's where I must. The Onkyo that doesn't work warned that it might not work w/o a built-in USB (and the Onkyo needs either a power adapter (hard to find) or computer powered USB so I've pretty much given up on the Onkyo. But not being able to transfer notes from my Olympus digital recorder directly to the 2400 is irritating. What is maddening is that the USB works SOME of the time. It'll boot obediently on 8.6 with the card inserted or show up on the desktop when card is inserted after boot on 9.1 and everything works fine. Next time I boot into 8.6 with the card inserted it won't boot; next time I insert the card after the boot with 9.1, it won't show up[ on the desktop. I can solve the problem by going into my extensions folder and Conflict Catcher and making certain all the extensions are enabled but sometimes the various USB extensions seem to disable themselves and I have to make them right before I can get the card to work again. I'm not trying to prove that I can get the MacCally card to work on my 2400 - I can. I'm trying to make the card reliable enough for everyday work. Are yours? Have you minimzed extensions for an 8.6 w/USB boot? WIll yours work everytime you boot with it or insert it after boot? Donald McCaig Donald McCaig Yucatec Farm Williamsville, Virginia 24487