Do you have to set the tv to a seperate video channel? Don't have a clue about Ati's, but my nvidia has an option in the config to detect a tv.
No option ntsc-pal to change, or the output frequency to the tv's default?
Try a restart of the laptop with the tv attached? Have you installed ati's software, or just some standalone driver?
With my previous notebook, a toshiba satellite, I just connected everything, clicked Fn+F4, and that was it.
The thing is, I can't seem to find a specific "Ati control Panel/control center" (although it shows in my "remove/add software - I went into the directory, and tried to star the applications, but nothing happened)
I never installed anything, just the stuff that came with it. i saw some "omega drivers" to download, but had to uninstall the previous ones, and got worried about it.
Like I told you, I just connect the cables, and press Fn+F4. The TV screen flickers, but that's it.
The notebook is capable of switching from the LCD display mode to S-Video or external display modes.
The external VGA port is enabled by holding the Fn key down and pressing the F4 key at the same time. There are three modes that can be toggled through:
Internal Display only
Internal Display and External Display
External Display only
Other options can be accessed for configuring the external display or SVIDEO output by right-clicking the Windows desktop or background and selecting Properties from the menu list