"No ATI graphics driver is installed" - Trying to remove new graphics, revert to card build in motherboard

Posted on 2009-12-18
Last Modified: 2013-11-08
What a mess.  I removed a GEForce graphics card from a Dell Optiplex 320 tower.  I installed it a while ago for a dual monitor setup for a user & think it may be a bad card.

After I removed it, I plugged the monitor back into the built-in monitor (blue) connection/port.  (Original graphics card built into motherboard.)

When I turn the user's computer on, I get this message:

"No ATI graphics driver is installed, or the ATI driver is not functioning properly.  Please install the ATI driver appropriate for your ATI hardware."

Also, the screen started up completely black & now flickers.

When I look at Device Mgr for display, it says "ATI Radeon Express 1100".  (I'm not sure if this was related to the GEForce card that I just removed)

Before I installed the GEForce card, I believe the display was "Radeon 7000 Express".  (I'm wondering if that's what is built into the motherboard?)

Basically, I don't know what I'm doing and just need to get back to a functioning screen (and I'll deal with the dual graphics card later, whether it needs to be thrown/returned).

Question by:TinaSC
    LVL 19

    Assisted Solution

    What operating system are you running?  Windows/Linux?  If Windows which version?  XP/Vista/7?

    Have you removed all Nvidia/ATI utilities?

    Have you downloaded the latest drivers from the Nvidia/ATI site for the model card you have?

    Author Comment

    Windows XP.

    Have you removed all Nvidia/ATI utilities?  
    • Do I do this thru Add/remove, or am I right-clicking what's under the Display Adapter and choosing "uninstall"?
    Have you downloaded the latest drivers from the Nvidia/ATI site for the model card you have?
    • No, this is related to the not knowing what I'm doing (and slight panic/frustration/don't-have-time-for-this).  I'll look up his service tag to see what was built into this system.
    LVL 69

    Accepted Solution

    Boot it into safe mode and remove the video card driver for nVidia.  This should let you use the onboard video if the driver was installed previously.  The next time you install a new video card, you can install the driver to go with it.
    LVL 62

    Assisted Solution

    by:☠ MASQ ☠

    Author Closing Comment

    Thanks for your help.  No clue what I was doing.

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