Cannot hear youtube through headphones on AxeIO Solo

[Barbucius]

Hey all,
I installed my new AxeIO Solo, and I am using amplitube 4.. I hear my guitar correctly in my headphones connected to the interface except that I want to play to a backing track on Youtube but the sound of the music only comes out the PC speakers..can't seem to get the sound in my headphones...

Any help would be appreciated.
Thanks

[dougs.ik]

Go into Windows Settings > System Settings > Sound > Output > Device Properties > Related Properties > (new window pops up) > Advanced (Tab) and set the "Default Format" the same as you have the Axe I/O Solo set in it's Control Panel.

These instructions were terse - if you need more detail let me know