Hiall, After a nights work of merging two kernel trees together so that they'd work, and updating binutils. Now with kernel 2.4.22-pegasos the bktree stills give OS9.2 the weird bomb errors, and I don't dare try OS-X. The only effect of my wasted night was the I f*cked up ALSA again.. ARGH!!! Any ideas Samuel?? Thanks in advance, Regards Karosa Alabaster