I've read much about installing Windows 7 64 bit on my 21.5" late 2009 iMacs - nevertheless there is some lack of clarity about how to do it right. First I read "http://manuals.info.apple.com/en_US/Boot_Camp_Install-Setup_10.6.pdf". That's all well and good, but nowhere in this document is that "USB storage device trick" (see "http://support.apple.com/kb/DL995") mentioned! On the other hand, in that DL995 description there's nowhere mentioned that there are additional steps to do afterwards! OK - first I prepared my USB storage device according to DL995, made a 201GB partition, inserted the 64 bit Windows 7 DVD and ran the installation without any problems. Windows works, but brightness and volume controls for example don't work. (When I press F1 I get Windows help etc.) I can't find Boot Camp installed under Windows anywhere! After the same installation on my second 21.5" iMac everything looks identical with the exception that under "Bluetooth Devices" on one machine there's "Apple Wireless Keyboard" and "Apple Wireless Mouse" installed - on the other machine NOT, even tough I've NEVER used Bluetooth devices any of both machines (just used wired Apple keyboard and USB Trackball). How can this be? What's wrong? Before I continue (OS X disc, 3.1 update... if required at all?), how can I verify that the USB storage device had been used at all?/ How would it look if it wouldn't have been used? Thanks for your help!