have you try a different app? I use wii game manager and sometime that happens...if I use another app (like WBFS manager 3), it seem to fix that issue. If not, maybe try deleting it and re-adding....goodluck...
best place to buy any types of cable (and gaming cable) for cheap is at monoprice.com....Wii Component cable are about 10/shipped and the quality is great.
