Sure, it means it can't find kernel headers, usually those glibc was compiled agnist but in most cases the currently running kernel will do. Most distros keep headers in /usr/include/linux. Most people extract they're kernel source in /usr/src/linux, so many things look there as well. (actually /usr/src/linux/include/) The debate as to wether or not kernel source should actually be extracted to /usr/src/linux or your home directory and compiled as root or a standard user ragers on, but that's another thread. -- Andy Zbikowski, Sys Admin | (WEB) http://www.ltiflex.com LTI Flexible Products, Inc. | (PH) 763-428-9119 (EX) 132 21801 Industrial Blvd | (FX) 763-428-9126 Rogers, MN 55374 | (PCS) 612-306-6055