Dear Prof. Gerhard, I have core i7 machine and have installed wien2k 11.1 version installed. We are using the l_fcompxe_intel64_2011.5.220 version installed in it. When we run the code for system with many atoms, we get errors : install glibc; although we have installed it already. please can you help what may be problem. Thanking you, R.K.Thapa -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://zeus.theochem.tuwien.ac.at/pipermail/wien/attachments/20111206/d535ade1/attachment.htm>