Help! I'm not sure what has happened, but about a month ago, we have been unable to print to our Epson Workforce 500. The printer is plugged in properly and has power. I can print a test page using the EPSON aps, but when I try to print a document or picture I get a generic error. In addition, our camera is no longer able to download to our mac. Both plug into USB ports. They used to work fine, and I'm not able to pinpoint exactly what changed on my computer to cause their recent failures. We have a Power Mac G4, operating OS X 10.4.11 Any advice? Thanks.