smplayer quits playing video with the ati video controller

[borgbylt]

I just bough a tigerdirect barebones amd tricore box. when i install the ati video controller smplayer plays the audio but not the video. when i uninstall the controller, smplayer works fine but then brower and game video runs choppy. i get no error messages. what can i do? what more info do you need.

[borgbylt]

ps. avi's do not run fine, but at least are visable