Solution
Please Install the Updated Packages.
Insight
The sis video driver would crash during X.org startup, reporting that there were some undefined symbols (asserts), resulting in the server aborting its execution.
The updated driver corrects the problem by removing the references to assert.
Affected
x11-driver-video-sis on Mandriva Linux 2007.0,
Mandriva Linux 2007.0/X86_64