Hi Romona,My printer is Pixma MX870. The twain_32 folder had a folder called MX870 series that contain 62 files. Twain_32 only has the file wiatwain.ds and the MX870 series filder. Thanks for your help,jyy000
On Win 7 64bit, mp navigator cannot start. The canon files seem ok in twain_32. I've reloaded the drivers and mp navigator fron the canon site. All printer functions work except scan. Thanks for your help.jim