I am trying to change the tone for arriving email, but when I select "sounds for selected profile" it switches screens to a semi gray screen for half a second then right back to the menu.
I had this same problem. Even a battery pull didn't fix it. What I did was uninstall the latest apps I installed, rebooted, and I could edit the sound profiles again.
The apps I uninstalled were Nimbuzz, BeReader, and FourSquare. I've since installed all but FourSquare and I can still edit the sound profiles. I didn't reinstall FourSquare because I never used it. I can't confirm if that's the troubled app or not, but try uninstallling your latest apps.
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