In case someone made the same mistake as me....

When I was reinstalling my stuff I couldn't get sound for a while, until I realised I was manually making the mkext in /extra by combining the kexts in S/L/E and Extra. It should only contain the kexts in extra. If you do it manually in terminal you get a lot of missing dependency messages but the resulting mkext is the same as you get from Kext Utility (I checked with md5).

I had some samba problems too but using "computername\username" as the username worked for me. As in this tip http://www.macwindows.com/snowleopar...g.html#090209d