Solution:

In Linux, There are many versions VAG drivers because Linux Kernal version and XFree86 version have some difference. The PCA-6181VE VGA Driver is ATI RAGE Pro 128 4XL ( AGP 4X ). Red Hat Linux 7.1 include XFree86 server could not support this VGA Driver. Red Hat Linux 7.2 could use Frame Buffer X-Server driver to enable X-Window to support this VGA Driver. You can link to XFree86 Website to download new Driver XFree86[tm] 4.2.0 ftp://ftp.xfree86.org/pub/XFree86/4.2.0/binaries/Linux-ix86-glibc22/ According to the README file , you can get your answer.