Lincity errors

on Manriva 2007.1 (x86_64) , What's with the Xfree errors?

"Couldn't load music file '/usr/share/lincity-ng/music/02 - Robert van Herk - City Blues.ogg': Failed loading libvorbisfile.so.3: libvorbisfile.so.3: cannot open shared object file: No such file or directory
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 135 (XFree86-VidModeExtension)
Minor opcode of failed request: 10 (XF86VidModeSwitchToMode)
Value in failed request: 0x45
Serial number of failed request: 121
Current serial number in output stream: 123"

Looks like you don't have the libvorbisfile.so.3 library installed. I've never used Mandriva so I don't know how to install stuff, but you need to install the vorbis libraries in order to play .ogg files.