Hi -- I recently had to reformat my G4 hard drive, and am now reloading. For some reason I can't get Windows Media Player to work. After downloading Microsoft's recommended WM Version 9 for OS X (I have OS 10.4.7), the executable file on my desktop is titled "Windows Media.sitx". My iMac doesn't understand that extension. I had no problem before reformatting. Recommendations on how to solve this compatibility problem, anyone?