Hey Blaze and Leenie - I have reinstalled and am beginning the process of trying to get the 720 working. One thing I did last time that may have contributed to the problem is, in order to install the 32 bit libstdc++ 5 and libcupsimage2, I need to install some i386 version of dependencies. I just installed libgnutls30:i386 and it is in the process of removing most of the applications on my system. I did this before, but didn't realize this was the culprit, did a reinstall, and that was where I started with you guys. So, this will be another re-install.
I no longer have Synaptic or gdebi. Just tried to install Synaptic, but it has a lot of dependencies of files that were removed. Two, glib-networking-services, and glib-networking-common are already installed, but it is still telling me they are dependencies. All the applications have been removed except for KeyPass, Image Magick, Laptop Mode Tools config, and Root File manager.
So, my questions are:
1) Any idea why libgnutls30:i386 caused all of the applications to be removed?
2) How do I install libcupsimage2:i386 when it depends on libgnutls30:i386? Is this just not possible and should I run a 32 bit OS?
3) When I run sudo apt-get -f install, I get a long list of packages that were automatically installed and are no longer required. And, I am getting messages about held broken packages. Not a question...just info.
4) Is there a site or book you would recommend for me to learn about these things other than bugging you guys and trial and error?
Loving the learning process......thanks for any thoughts.