I uninstalled something a minute ago and I had to reboot. I like to manually reboot so I turn off my computer, go to turn it back on and my monitor comes on and says "No Signal" on a yellow square over a black screen. Then the power light thing goes from green, to orange. I shake the mouse, hit keys, and different stuff to get it to work, but the only thing that works is to turn it off and back on. But it still says "No Signal". Whats the problem? I have check that my monitor is plugged in securely, and my mouse, and everything. What can I do? I'm on my sisters sucky computer right now. =\