My grandmother just purchased a HDTV, with PC connectivity. she wants me to plug her computer into it, so she can watch netflix, and other streaming videos on her tv, while still having the monitor plugged up for normal uses. Obviously she isn't going to want to get in the floor and switch vga cords after every streaming video, and she doesn't want to spend alot of money, so i figured i would buy a VGA Y cord (probably just a real cheap one on like amazon). i read that they can cause ghosting, but would that still happen even if the monitor was cut off when she watched on her tv? Oh, and im connecting the tv to it through a 15ft VGA M-M rosewill cord.Any suggestions or advice?