Pretty sure I know the answer but would like some expert opinions. I have an MP2550sp that displays an "sd card authentication" error. Error code in sc history is an 866 "illegal data on sd card". It has a vm card (JAVA). I can uninstall the extended features and even completely remove the VM card and still get the sd card authentiation error. I can ping it and print to it but cannot web into it to set up the scan to e-mail/scan to folder. I suspect a bad controller. I know I can't be the only unlucky s.o.b. out there. Anyone seen this? Firmware is current.