I recently went through and cleaned all the dust out of my case and off all the hardware and when i went to start back up the screen shows " A67611 RV530PRO BIOS DDR2 500e/400m" and it won't respond to any keystrokes.  On the back - the LED lights are all green except for the "D" it is orange.

did i unplug something or maybe really mess up the system?

any help would be appreciated.