sigh, my pcchips no longer builds at all :=( OK, more to look at. Current error is: crt0.s:435: Error: subtraction of two symbols in different sections `gdt_end' {*UND* section} - `gdt' {*UND* section} at file address 52 make: *** [crt0.o] Error 1 Steve, do you have your pcchips.config file? ron