Through out the 'Office Space' movie, I notice that it looks like that they use the Mac Platform. It's relatively easy to see the difference between Mac and Windows platforms. When the main character is saving his work to leave early, it is the Mac platform. I can tell that his keyboard is made for Mac too (it has the arrow key on the upper right to turn it on, but he does not use it though - he uses the regular power button on the front of the monitor). But after he visits his doctor, he is more relaxed and slacks off of his work. After he pushes his cubicle wall down, Lumbarch comes to see what he is up to - and he is playing Tetris. Take a look at the platform that the Tetris screen is using - it's Windows ! But through out the rest of the movie (when the virus is being programmed) they switch back to the Mac platform. To me, it appears as if they are using Windows computers and hiding them behind Mac interfaces but forgot the Tetris screen - oops ! If you don't have a good eye like me, it's hard to see the difference between the screens in the different scenes.