Hi Wolf
Thanks for the link. I've now been on and downloaded updated drivers and tried a few other things but still getting 'Printer not on line', when I try to print wirelessly.
The strange fact is, my other half can print wireless with no problem. When I look at printers installed on her laptop, she has Canon MP640, just like me and also same again but with 'Copy 1' after it. When she tries to print to the first one ... no go, just like me. However if she selects printer with Copy 1 after it, it prints out no problem, wirelessly. Where she got Copy 1 from I don't know, neither does she. We have had the printer for over a year and it used to run wirelesly on BT home hub from both of our laptops .... but having moved house we are now on a different router/service provider. Doesn't seem to have cocked up her print abilities ... just mine.