problem starting xfce in remastered knoppix-std distro

Hi there
I have made and burnt my remastered iso of knoppix-std and have changed it so that xfce starts instead of fluxbox...
everything went great except that part way through the initialization of xfce it crashes stating these lines:

Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_clip.o": No symbols found
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_norm.o": No symbols found
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_xform.o":No symbols found
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_debug_vertex.o:" No symbols found
Skipping "/usr/X11R6/lib/modules/fonts/libspeedo.a:spencode.o": No symbols found
Warning: font renderer for ".pcf" already registered at priority 0
Warning: font renderer for ".pcf.Z" already registered at priority 0
Warning: font renderer for ".pcf.gz" already registered at priority 0
and continues these warning messages replacing pcf with snf, bdf and pmf respectively.

Does anyone have any idea as to what may be going on? any help would be greatly appreciated
thanks