OK, thanks to the respondents to my earlier question. The problem is not as serious as mostly curious the particular machine on my network has no soundcard, but the syslog message is recorded after I start KDE. Hmmm, do we see a pattern here, some low level sound setting thingy, I'll have a look shortly. However, the question remains where is the most logical place either within my own system or by URL to find out exactly what goes into conf.modules. I have various snippets of stuff from previous posts, about 'alias net-pf-' & 'alias tty-ldisc-' but have yet to corelate them to a source document or is it the source {kernel} that I should read. Thanks for reading this anyway. Andrew