After a week or so using Ubuntu on my EeePC, the only times that I had booted back to the original Xandros install were when I had forgotten to hit the ESC key during boot to select the SD card to boot instead of the internal SSD. I decided that it was time I got rid of the installed Xandros properly and just used Ubuntu from the internal SSD. Again the install went really smoothly, using the USB CD drive as before, I did however make a backup of the SSD image before I started.