Hello, My workstation is running with an "Intel 3.2GHz/1MB Xeon (EM64T) Processor" and "Redhat Linux Enterprise WS for AMD64/EM64T". Which binary version of standalone BLAST should I install? The various likely options from NCBI are: 1. linux-ia32 2. linux-x64 3. linux-ia64 Thank you for your advice. Andrew