thanks Mark, its says
1 gigahertz (GHz) equivalent or faster, 32MB Graphic card, 1024 x 768 Display resolution, Broadband Internet connection, Win XP or higher.
Windows Browsers: Internet Explorer 7.0 / Firefox 3.5.7 or higher.
Operating systemWindows XP SP2 or higher. MacOS X 10.5 Leopard or higher (Intel only).
Mac Browsers: Firefox 3.5.7+ / Safari 4.0.3+
Three plug-ins are available: one for Windows Internt Explorer, one for Mozilla FireFox and one for Intel Mac's running Leopard (Safari and FireFox). When accessing the URL for the IKEA Home Planner, a page for downloading the appropriate plug-in will be showed if not already installed. It is the same plug-in used for all countries and languages.
For installing the Mac plug-in follow the instructions on the screen. Here with some additional info:
- Download (save) the disk image file 2020PluginInstaller.dmg
- Mount the disk image (open/run the downloaded file) if not mounted automatically
- Find the 2020PluginInstaller window (might be behind the window on top)
- Drag the lego piece to the folder (if you do not have admin privileges you will be prompted to authenticate)
- Restart the browser (it is not enough to close the browser window, you need to restart the browser application)
- Access the same link and you will now see the Start button and be able to start planning your room