I haven't recorded using the USB since the newest firmware and for some reason when I open up my protools session I setup before for USB. It tells me my audio device wont record 48 and then tells me it doesn't support any buffer sizes. I have never changed a thing in the protools session since I last opened it and now nothing works with the AXEFX USB. I'm running protools 9 on a maxed out iMac I7 which worked perfectly the last time I uses it through USB. Any ideas?