Windows Media Center users who use universal remotes—not the default Microsoft IR remotes—have run into a quirk where only some button presses register. Here's the deal: media center receivers expect to see an alternating IR code for functions like channel changing or volume switches in order to eliminate IR "bounce," which is apparently caused by IR signals bouncing off stuff and hitting the receiver twice. In order to turn this off and fix the problem for universal remotes that don't support the alternating IR codes, just change a registry entry and you're done. Hit up CEPro for more details. [CEPro]