Hola ! [b]my way of makin the ACER DUAL BOOT with OSX Snow Leo & WIN XP pro SP3:[/b] 1.) with the help of WinSetupFromUSB I made Windows-XP bootable from USB-stick (important: use the same format for USB-stick as you will use later on for your HDD) 2.) used the WIN-XP install to format the HDD - like a pre-format to clear the HDD & delete all partitions - at this stage no Win-XP install !!! 3.) followed the instructions of netbookbootmaker [URL]http://osx.mechdrew.com/guides/advanced2.shtml[/URL] ( the 1. example for DUAL BOOT), but instead of following the instructions for makin changes on the Leopard install (MBR booting instead of GUID), I used a tool from here: [url="http://ipis-osx.wikidot.com/forum/t-178397/creating-a-snow-leopard-install-usb-key"]http://ipis-osx.wikidot.com/forum/t-178 ... ll-usb-key[/url] my comments: 1.) be PATIENT ! it will take time, especially the installs from USB-stick, sometimes I thought nothing happened, but . . . be PATIENT ! 2.) you have to understand & follow the instructions 100% ! - then everything works just fine. Take care: any little tiny change or not following the instructions 100% will mess it up ! 3.) for Wireless I ordered the dell dw1390 or similar card - just installing the hardware, and that´s it ! 4.) for audio are diferent kexts available (see diferent posts in this forum) - but the mic "never works" perfect. 5.) for Ethernet see: [url="http://www.aspireoneuser.com/forum/viewtopic.php?f=14&t=17768&start=10#p103985"]viewtopic.php?f=14&t=17768&start=10#p103985[/url] 6.) ext. monitors see: [url="http://www.aspireoneuser.com/forum/viewtopic.php?f=14&t=17888"]viewtopic.php?f=14&t=17888[/url] [b]For me is ONE ISSUE PENDING:[/b] Windows (on 1. partition of HDD called: C ) booted perfect after installation but after installing OSX on the 2. partition (D) and running the netbookinstaller (incl Chameleon install), I can´t boot WIN XP . . . WIN-Xp ist not shown in Chameleon when booting the netbook. for booting WIN-XP, my WIN-install USB-stick has to be connected, and I have to boot from my WIN XP USB-stick, and then WIN-XP boots directly from the HDD. VERY STRANGE ! something wrong with chameleon ? SOMEONE HAS AN IDEA ? muchas gracias