Comment 1 for bug 520919

Installed Cantor on Alpha3 and I agree that it does not appear to be possible to setup the R backend (perhaps it was compiled without it?). R is installed via the Ubuntu repository, not the custom r-cran repository. I have used R on this system and it appears to operate as I would expect but I am only able to set up Cantor with worksheets for KAlgebra. I don't have sage or maxima installed so while I can see the options in the User Interface, I don't know if they work.