I inherited an epson 7800. The drivers I get off the epson site are buggy. I have tried 5 different operating systems and several computers. It seems to to work with 24 inch roll paper. I have yet to try it with 17 inch wide roll paper. The 8.5 by 11 only gives me a full print if I print it with the vertical setting. Super A1 seems okay. Is there a specific mac operating system that is compatible?