Teac Widescreen

wii component cables problem?
i just purchased some 3rd party wii component cables.
i have a teac tv not sure what model (not widescreen), but it has the ports at the back for component cables which are blue, green,red, etc.
i plugged them in, found the channel that shows the wii and turned on my wii.
it works fine,but when i put the tv mode in the wii settings on EDTV/HDTV (480p) it loses the picture!!!
i can still hear sound, but the channel says no signal!!!
is this something to do with the tv, the wii, or the component cables??
Try buying the offical Nintendo brand cables.
