I have a 15" monitor, I was using it one day and i think I maybe cranked up the resolution higher then the monitor was supposed to take, now when I hook it up all the light does is flash(like it does when it's not getting a signal) and nothing appears on the screen. I tried a differant monitor on the card and it works, so it must be the monitor. Did I break it, or did I just blow a fuse or something. I need to know, cause I just sold this to a guy, and I don't want to send him a bum monitor.