Often make your puter crash because you have to install the latest drivers which often does not prevent crashing. This said: a very complicated language if it were that is used to command your graphics card. It works all platforms (or should) and has several advantages because it can speed up screen redraw. It has many tricks in its sleeves like only redrawing the pixels that have been changed, allows for antialiased lines etc etc... Problem is that is is very complicated to program as there are many variables. So it really does depend a lot on your card and its drivers. Even in "high-end" gamer's cards it is usually not fully implemented. Not because the cards can't handle it, but because the "pro" level cards (fireGL, quadro, wildcat,...) also have to find buyers. Recent gamer-level cards (radeons, nvidia's geforces etc) with recent drivers usually allow it to a certain level, and in case the written language corresponds well with your specific puter system (this goes deeper that buying a vid card and getting a recent driver) you get a very noticable screen redraw. If not, and this happens very often, stability is at stake and you get freezers and applications disappearing in thin air. Or disappearing objects, vibration on your screen etc etc.

I have tried prudent planning long enough. From now I'll be mad. (Rumi)