Is that the only place you see it? it could just be that some of the settings window's uses requires a feature that that card does not support. I believe its pretty old.
try some of these.
go into control panel/system/advanced
then choose under performance
"Settings" and start playing around with the stuff in there. see if anything changes.
also if you installed newer catalyst drivers, try going back to an older version something around when the card was in its prime maybe.