Indeed it switch but the last time it happened to me today it crashed explorer completely, and I had to abruptly shutdown the machine. I'll try unchecking the OpenGL and I'll have you know the results in the future. Actually it happens constantly when working with Sapphire.
Thanks a lot, I'll keep that in mind. Just to ask something kiddish.. Is there any other little "not so famous" tip you could give me for future working? The Media Cache, for example, is it really useful? I have never had a real use of it.
It's almost a crazy question with all the stuff that can come in mind, but I'm working with AE since years so what I miss are these "little things" (yeah, in this case it was a must as I see, I have to admit my defect) that can actually help us.