wonder if you could advise - I installed x86_open64 on my Fedora linux fc11 (AMD athlon) with no problems, but can not on my Fedora fc13 (AMD Opteron). The problems appear related to missing libraries for glibc. They are present on the fc11 machine in /lib & /lib64, but on the fc13 ONLY in the /lib64. Infact Fedora 13 installation of the glibc for non x64_64 packages fail. (e.g. glibc-2.10.1-1(i686) can not be installed on fc13. I suppose this is a problem with fc13. Can you advise best course of action.