I tried hooking my mac mini up to my samsung HDTV (VGA cable) and it worked at first, but the picture wasn't the resolution i liked so i decided to change it. I ended up changing it to a resolution that wasnt supported (woops). Now when i plug it into the TV, the desktop shows up momentarily and then the TV flashes "Mode not supported". Is there any way to remedy this? i tried hooking up my 20" computer monitor but you can only change the settings for that specific monitor. Would another input option help? I'm lost.