Corrupt Graphics only in BIOS?

Hello,
Ever since I put my Athlon 2800+ and NF7-S V2.0 rig together,I have had corrupt graphics only during post and BIOS changing.Everything is fine in Windows and while gaming.I suspected my 9800 Pro but put it in my P4 2.8 Gigabyte rig and no bad grpahics during post or BIOS.Went even further and installed 9200 out of the P4 rig in NF7-S Athlon rig and everything is fine during post and BIOS also.Could the AMD NF7-S have a conflict with 9800 Pro.Thanks for any help.

reseat it back into the agp slot reset motherboard bios and see if its help

ive had bad graphics before like that but had them in windows i just resat my ti4200 and it was all good again