On 02/06/2013 04:26 AM, Andre Costa wrote:
Quite the contrary: this is a 8-core i7 desktop with a GeForce GT9800. It should handle any videos just fine ;-) (as it always has done until F18). There's clearly something wrong, I just don't know exactly what it is. CPU usage doesn't spike too much while watching videos
Have you tried running top in a terminal while this is going on? It can't hurt to know what process is using most of your CPU time when the videos slow down.