Hi eaglehdr,
Please flash BIOS and update the video driver form the link given below:
Enter the system service tag and click Submit and then select the Operating system from the drop down list to get drivers for your computer. I also recommend you to update the wireless driver. In case you find difficulty in finding the drivers, let me know the Operating system to provide the exact drivers.
Note: While flashing BIOS connect the Ac adapter and make sure the battery has minimum 15% charge as this needs uninterrupted power supply. Do not use the system till it restarts and comes up to the desktop. Restart the system after each driver update.
Revert for further queries.