Poor quality watching Quicktime movies on F18

[Joe Zeff]

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.