Thanks, Richard Bos, . . . excluding PRPMs from my /etc/apt/sources.list fot my one big step forward. NOW, i face his barrier :- __________________ Executing RPM (-Uvh)... package kdebase3-ksysguardd-3.0.4-4 is already installed package libxslt-1.0.21-0 is already installed file /usr/bin/catchsegv from install of glibc-devel-2.2.5-161 conflicts with file from package glibc-2.2.5-158 file /usr/bin/pcprofiledump from install of glibc-devel-2.2.5-161 conflicts with file from package glibc-2.2.5-158 file /usr/bin/rpcgen from install of glibc-devel-2.2.5-161 conflicts with . . . { plus 35 various other conflicts } ..................................................... I believe this trouble is because I moved from the apt repository for 8.0 to repository 8,1 BEFORE the base packages were released. How can I fix this, please ? thanks best wishes ____________ sent on Linux ____________