Hello!
the current 32bit version of dcp-o-matic does not work on Windows XP O/S will display only information about missing file wxmsw294u_richtext_gcc_custom.dll
Best regards.
SONY 4K SRX-R210, DCI projector
SONY LMT-200, DCP compliant mediablock
Prexer AP-621, 35mm projectors
USL JSD-80D, audioprocessor
Thanks for checking it out; a fixed Windows version is forthcoming shortly... what problem do you have on Ubuntu? Can you try starting it from the terminal (just type dcpomatic at a prompt) and seeing if you get any error messages?