Thanks for all that; I think I'll wait till the Sarge set of CDs comes out (how long can it be?) and consider changing to that - I'd have thought it was more likely to have the bugs ironed out than the Sid release. The only issue will be then if the update can be done without writing all over my current user files (all on one partition I'm afraid, but that was the result of Knoppix install defaults).

I'm not sure about Cuddles' remarks re packages - I thought apt-get was clever at resolving dependencies? Is Synaptic cleverer? i can't see it on here anyway. If I get apt-get to upgrade/downgrade to a defined release level, all this dependency stuff should work out, no?

Another related issue if I may: I've now got a number of modules which Knoppix kindly installed for me but which I don't use, is it worth removing them? The deporphan program (and the Orphaning tool) show some packages that can be removed if not wanted and I've done some of that, but what about these Kernel Modules?

Regds, RM.