sounds like its a compatibility issue .Ive never fooled with a 9600 , does it have an extra power cord ? Make sure to uninstall
all previos drivers from both cards.
I use 1st control panel / add /remove progys.
Then boot up .Depending on your OS , 98 prompts to install a default adapter first .Let it do that .Then run driver cleaner 2 uninstall ATI/WDM/ATIHydravision/ATI MMC/ATI Uninstall Utility
Then put your CD in to install the new card .
Check to see if your 9600 needs 3.3 v or 1.5 v
Sorry cant be of more help .But you havent posted your system specs