I'm not sure if anybody else is using profiles/hotkeys to change refresh rates, and
driving their refresh rates at NTSC-derived rates, 29.97 ("29"), 23.976 ("23") and 59.94 ("59").
If you are (like me), there is this problem that the profiles in CCC didn't call those rates, instead they called up 30, 24 and 60 respectively, so in order to change via hotkey/profile to the other NTSC specific rates you had to use a third party app.
I just found an easy way to fix this. Make sure you've saved your profiles to change to 29, 23 and 59 and close CCC.
Enable hidden files, go to your user folder and AppData\\Local\\ATI\\ACE\\Profiles. You'll have one .xml file for each profile. Choose the one you want to change and edit it with notepad.
Change the highlighted number in the following screenshot (it shows the number after I changed it). For your "29" profile, it will say "30" so change it to 29. For the "23" profile it will say "24" so change it to 23... you get the idea.
Besides this, in my PC there is another bug with Media Center, in which it won't run at 29 Hz ever (but all other rates work). In this case there is a registry setting that takes care of this.
Change the value of RefreshRate to "29" (decimal). This will always open MC in 29 Hz.
So basically, pretty much all my gripes from these ATI cards are worked around for me.