OT: Linux Geeks - Graphics Card Help, Please

[Panopticon]

My Dull (D-4550) Linux box has an older nVidia card that lacks DVI. I want to upgrade to a newer card with DVI. So, if I get a new nVidia card, will the box still boot OK or do I need to do some command line work?

Running SUSE 10 w/ the new nVidia driver, nVidia MX440 AGP with a 1907FP display. Of course this is a P4, it is a Dull afterall ::o

Thanks for any assistance.