Hi Tim, So Canola2 will install perfectly on your N800 but not on your N810 and its the only application that is giving you problems on your N810?

You mention at the start of this thread that you got your N810 around Christmas 2007, during the "repository hell" period. Did you by any chance use any temporary repositories to download Canola2 and/or other applications? (Have you since removed these?)

It does sound like something is generally amiss with your N810, have you really updated to latest version of OS2008 for the N810. I would be tempted to do consider starting afresh again on your N810, I also would not use the backup facility unless its absolutely necessary. (This way you will have a clean device to install Canola and your other favorite applications) Note: You imply you have done this and then the only other thing you did was try to install Canola2 from the website following the instructions?