Simi wrote: » It's probable that the Galaxy Ace simply isn't powerful enough to run it properly. I'll have a Google & get back to u ;-) Edit: Okay had a look round xda & Netflix is only casually mentioned once in the Galaxy ace forum. No big long threads describing problems similar to yours, so we'll assume it should work fine on your phone. Are you using a custom rom? When was the last time you wiped your phone? It's possible you don't have enough free ram & that could be causing the slow down. Here's a list of ram hungry programs http://forum.xda-developers.com/showthread.php?t=1437683 Hopefully someone with a ace will be along shortly to help you out.