Same Problem Toolbox for Canon MF5750 running on Vista Home Premium 64-bit gets the following error... "A supported scanner is not installed. Please install a supported scanner, and then restart Toolbox." Emailed Canon support and no response. Called Canon support and they said the MF5700 series MFPs are not compatible with Vista 64 bit. They don't plan on supporting 64 bit operating systems. Not surprising from Canon, this would be the second time (2 separate printers) I've been burned by there VERY poor and unacceptable support. STAY AWAY FROM CANON!!!! I guess they just expect us to throw it in the trash and by another product. This is complete BS, my MF5750 is just less than 2 years old. Does anyone know how to make this work???? I can scan with Microsoft Office Document Imaging software but everything is inverted. The whites are black and the blacks are white. So, essentially I've lost the scanning function of this MFP. I should have spent the extra bucks and purchased an HP, because this is TOTALLY UNACCEPTABLE.