sir compiz not working in my system having ubuntu 9.04

compiz not working in my system first it showed error message no whitelisted driver found and when i installed some nvidia driver then it showed that versions of nvidia are different in my systrm .actually i have windows also installed in my systemowed error message regarding and have

problems with working of compiz in my system in ubuntu 9.04

this is the message displayed on (terminal).. su...@sunny-laptop:~$ compiz Checking for Xgl: not present. xset q doesn't reveal the location of the log file. Using fallback /var/log/Xorg.0.log Detected PCI ID for VGA: Checking for texture_from_pixmap: present.