Possible Duplicate:
Should the original intent of a question be broadened to make the answers more canonical?

Sometimes there's an existing question on a topic you want answers to, but the question asks for a solutions on a particular platform / operating system (e.g. Windows) different from what you use (e.g. Linux).

Then should you post a new (near-duplicate) question that asks the same thing for a different operating system? Or should you propose an edit to the question that broadens it to apply to all OSes?