Has anyone come across any issues with printing from a mac 10.7 machine to a Konica bizhub C280 series or similar, with user authentication enabled? I have a machine that keeps getting a login error even though the login information is correct. They were previously using the 10.6 ppd driver and it worked with user authentication, but had an issue printing pdfs. We updated their ppd to the 10.7 but now the user authentication doesn't work. The only way to get them to print, is to disable user authentication. Just curious if anyone else out there is having this issue.