Dear All, Thank you very much for all your replies. I had a mixed-feeling from the responses. Some were rather pessimistic about the future use of PAUP with MAC's, while others suggested some interesting workarounds. Some good news is that David Swofford, has announced a new version of PAUP for this year as mentioned in the PAUP help group(http://lists.scs.fsu.edu/pipermail/pauphelp/2006-March/000220.html) This version is supposed to run natively in Mac OSx. If you are too anxious to wait for the next version, there are two other options: 1. You can use the command-line version for UNIX http://paup.csit.fsu.edu/versions.html in MAC OSX even if you-re using the new Intel processors, by accessing the UNIX terminal in Mac OSX (don't ask me how to do it, though!) 2. You can use an emulator called SheepShaver (http://www.gibix.net/dokuwiki/ en:projects:sheepshaver)that can run OS9 applications in OSx. This seems like a good option, but it might slow down your machine. I'll have to try this one. If you are a windows user, there is also some good news: Of course you can run either the command-line version for either Windows or Dos. If you have the latter version, you can also use the PAUP-up GUI (http://www.agro-montpellier.fr/sppe/Recherche/JFM/PaupUp/main.htm) that will allow you to access most of the same menus as in the Mac version. Of course, there are other programs that can replace PAUP, like Phylip, PhyML, etc. Some people also mentioned Boot-camp (http://www.apple.com/macosx/bootcamp/). This is a program that allows you to boot your Intel- based Mac in Windows XP, but this would only allow to run Windows programs in Mac computers, which is exciting by itself, but another issue altogether. I hope this helps other people too! I will try some of these alternatives myself in the near-future. Regards, Gonçalo Themudo -----Original Message----- From: evoldir@evol.biology.mcmaster.ca [mailto:evoldir@evol.biology.mcmaster.ca] Sent: quinta-feira, 13 de Abril de 2006 7:12 To: themudo@mail.icav.up.pt Subject: Other: PAUP on MacIntosh Computers Dear EvolDir members, I have just purchased a new macintosh computer. One of the objectives was to run PAUP on it. Unfortunately, I realize now that it is not possible to run Paup, because the new Intel-based Mac's do not support the 'classic' environment (OS 9) necessary to run the current version of Paup. In the Paup website, they say that the next version will include a command-line version for Mac OSX, but this announcement was made in 2002 already. Since Macintosh has announced that all their computers will have these Intel-processors from the end of this year onward, very soon no new computer will be able to run Paup. I would like to ask if there is some alternative, whether to hope that a new version will be made available that works with OS X, or some workaround maybe compiling the source code to work on OS X. Any suggestion would be helpful. Thank you for your help! Gonçalo Espregueira Themudo PhD student 1. Naturalis - National Museum of Natural History Leiden, The Netherlands e-mail: themudo@nnm.nl 2. CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos Vairão, Portugal e-mail: themudo@mail.icav.up.pt web: http://cibio.up.pt/main.php?content=members&id=47&type=graduate themudo@mail.icav.up.pt gethemudo@hotmail.com