Is there an error when it crashes or is it just "poof"?

It could be graphics drivers (for all you know there's a bug with openGl or whatnot on a specific card or cards with a specific driver).

It could be a bad Microsoft Visual C++ installation.

It could be something running the background interfering (often but not always these are things showing up in the taskbar).  Programs that hook into windows don't always make other programs happy.

If you are a Mac user, I don't have enough experience to advise.

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