[opensuse] Problems with serial printer

I have a serial receipt printer connected to my server. Printing System is CUPS on SuSe 10.2. Until upgrade it was working OK. Since then how ever I often get this message: "Unable to open serial port device file "/dev/ttyS0": Permission denied" from CUPS. I have to play with it a little set up the printer again and it works for a while. Then it stops working again. How do I make it working permanently? -- Regards, George Osvald OK Studio ® http://www.okstudio.com.au Email: mail@okstudio.com.au -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org