I recently sat down at my computer to discover that the only thing visible was my cursor. I restarted my computer and at POST, a 304 Keyboard or System Unit Error. I tried replacing and unplugging the keyboard and mouse, but nothing worked.
EDIT: After this error, it boots up normally until it reaches the desktop. The screen goes black so that you can't see anything, except you can see the cursor and even move it around.
Does anyone know anything about this? Suggestions?