Hi All, I need to be able to use Boost in a virtual environment, specifically, Sun's Virtual Box. I'm further limited in the company I am working for has not approved any Boost upgrades since 1.34 for use. I thought the best way to approach this would be to build Boost Jam and then Boost within the virtual box. Below is what I've done so far. Downloaded platform independent zip files for Boost Jam 3.14.1 and Boost 1.34.0 and saved into directory I called Boost cd Boost unzipped both files cd boost-jam-3.1.14 sh ./build.sh I received the following: ./build.sh: ^M: not found ./build.sh: ^M: not found ./build.sh: ^M: not found ./build.sh: {^M: not found ./build.sh: ^M: not found ./build.sh: syntax error at line 67: 'elif' unexpected I then attempted sh ./build.sh sunpro and got ./build.sh: ^M: not found ./build.sh: ^M: not found ./build.sh: ^M: not found ./build.sh: {^M: not found sunpro ./build.sh: sunpro^M: not found ./build.sh: syntax error at line 67: 'elif' unexpected Thinking I may need administrative privileges, I did su root and reran the same commands with the same results. I had previously built these versions on a Sun 4800 without problems. Could these errors be the result of running in a virtual box with WindowsXP as the base operating system and an Intel Pentium 4 CPU? Any advice would be greatly appreciated. Thanks, Mont