Lela, Let me try and sort through the confusion and clarify issues (at least as I understand you are tying to ask about). The latest Macs (indeed any new Mac model that you now buy) are powered by an Intel chip. This along with appropriate software, one of which "Boot Camp" is currently in Beta (pre production) but will come with OS X 10.5, will let you run both Windows (as long as you own a copy) and OS X on a given Intel powered Mac. This perhaps covers "the new "dream" operating system -- which I thought (am I wrong?) which allows the user to use both OS and Windows." That being said, I don't believe, as James has said, that there are any projectors that are "Windows Only". Almost all projectors I have used or helped clients use, supported whatever machine was connected to it. The issue though is achieving the connection. Many projectors still use "VGA" as a standard connection (15 pins arranged in three rows of five). On a projector these are usually "female" (as in the 15 connections are recessed) and rely on a cable with 15 pins (commonly referred to as a "male" connection). The current MacBook Pro's have a different standard connection ("DVI") and the entry level machines have a slightly different connection ("Mini DVI"). The MacBook Pros come with a DVI to VGA adapter cable when purchased and the MacBooks have a Mini DVI to VGA adapter cable available as an accessory. Both cables are fairly short 15cm (or about 6") and you probably need an extension cable (male VGA at one end and female VGA at the other) to connect the two - if you want some distance between the projector and the MacBook / MacBook Pro. Now if the projector (like some new flat screen TV's) has a DVI connection, then things get a bit simpler in that you don't need adapter cables and you can use a single straight cable to join the two. The main issue is to find out what connection your proposed projector requires and how to achieve this from your Mac. You should find the operating system used on the computer has little or nothing to do with the issue. Hope that helps. Sorry about lack of context but previous thread "snipped" to get under list length limitations. :( -- Regards, Mark (}-: +61 (0)4 1927 7198 Skype / AIM / iChat: gibsonm1 ON POETIC LOVE When you're swimmin' in the creek And an eel bites your cheek That's a moray! -- Fabulous Furry Freak Brothers