Hello, I just installed suse 9.1 for amd-64. Then installed mathematica 5.0 for linux (standard 32 bit linux) but, wen I try to run it, I get the error mathematica cannot determine operating system. and no mathematica... Now, I gess that this is just an environmet problem, since everyboy says that 32 bit intel instructions are understood by the AMD processor. Is there any way one can trick mathematica into believing that it is running in an arbitrary operating system (standard, 32 bit Linux) or any other way to solve this problem? TIA, Ze ______________________________________________________________ Departamento de Física http://www.dfisica.ubi.pt Universidade da Beira Interior http://www.ubi.pt ______________________________________________________________