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[barracuda_1]

it could be that you should de-install your old video card (software & driver)
or maybe reinstall your DVD viewing software (power/win DVD)

de-installing the software for your old video card should be easy, de-installing the driver could be a lot more difficult

do this.

open a command prompt.
and type.

set devmgr_show_nonpresent_devices=1
start devmgmt.msc

go to "view" and enable "show hidden devices"

now you can see all the devices that have ever been in your computer