Dreamboxes are Linux-powered TV receivers.
Is it ok to ask questions about them on SU? If not, where should I post them?
Questions on Dreamboxes would be closed on SU for being off-topic, since Dreamboxes are
a series of Linux-powered DVB satellite, terrestrial and cable digital television receivers (set-top box)
You could ask questions about them on Gadgets.Stackexchange I guess
I agree with Sathya, except for one thing. Dreamboxes run on a lightweight version of Linux and therefore, problems that directly concern that part of the Dreambox would fall under computer software, since this could help others that have similar questions about a linux system. If it's just about normal linux operations...