For your printer, do a search under the Canon website for linux drivers. If they aren't there then you will have to do some grepping under www.google.com/linux
for it. It's been a while since I've done the thunderbird installer, but it should be as simple as $sh <thunderbird-installer.??>. For your evolutions settings, are you sure your mail server is pop, and not imap? As for the resolution problems you are experiencing it is probably a sync rate problem. You will want to research your monitor, and change your xorg.conf file, located at /etc/X11/xorg.conf.
Hope this helps,