Since the operating system was re-installed did you remember to go to drivers and downloads, enter your service tag(DO NOT POST SERVICE TAG here or your post will get deleted, since it contains your personal information), and install these drivers in this order.
emoticon.Idea.title Hint emoticon.Idea.title When downloading the drivers, make a folder for each drivers and name it with the device it belongs with to make it easier to install them in the proper order.
Desktop System Software or Notebook System Software Chipset or SMBus driver Processor Driver (if applicable) Video Audio (sound) Input Drivers (keyboard/mouse) Modem Network Card
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