How can I uncheck "enable hardware acceleration" on all machines for flash?

[link470]

Hey guys,

 

Just updated all of our images over the summer, and noticed that on staff computers [iBM 8183-NUT's], YouTube doesn't play full screen without right clicking the video and unchecking "enable hardware acceleration". All of our other machines work fine, so it must be a compatibility issue with the video chipset in those IBM's [intel] and the latest version of Flash for whatever reason. Does anyone know of a way to change this centrally via GPO, or any other fixes?

 

Thanks!