I use Lyx Version 2.0.2 on mint (13) mate 64 bit.
I needed some very long time to figure out, why the rotation of the cell (in the first column) and the TeX-Code (in column 2+3) does not work.
At least I found, that this is a problem of DVI (CTRL+D). Displaying the Document with DVI-Latex pdflatex (CTRL+R) works correct!
May be knowing this will prevent some users wasting lots of time looking for he bug in their document.