Title of the post says it all really. My printer is one of the ones supposedly supported (x4690) and it works fine when connected by usb, but not wirelessly. I have tried everything I know to get this working. The only clue I have is when I try to print and run a log, it says Stopping job because the scheduler could not execute a filter. E [30/Aug/2009:14:17:13 +0100] Unable to execute /usr/libexec/cups/backend/lexnet3: insecure file permissions (0100755) So, any help with this would be really appreciated. I've tried to submit the problem to Lexmark, but the 'submit' button doesn't work on their website, so I emailed them directly, but am not holding my breath!