Yesterday I swallowed the red pill and installed Easy Debian and finally there is light at the end of the tunnel. BTW: the installation went without a hitch, although it can take some time (I think a hour, and the tablet looks as if it has become unresponsive, but just have faith).
Finally, I can now open email attachments in doc, odt or pdf. Doc and Odt are opened by Openoffice3,. That is real slow to the point of being unusable, but again I hope to improve that by plugging in Koffice in stead of Openoffice.
ED uses Gimp as the imageviewer. That is a bad idea imho, like using a cannon to shoot a mosquito. I looked where to change that but could not yet find it.