I have the Sound on Key Press turned On (under Language & Keyboard > Multi Touch keyboard > Sound on Keypress) so when I type on the keyboard, I get the clicks.
I have noticed when I am sending a text message sometimes the clicks get softer in sound (less volume) then back to normal volume. I have turned the phone off/on at least twice and removed/reinstalled the battery and it still happens.
Any assistance would be apprecaited.