Need help disabling word completion

[eric46986]

I just got a warranty replacement for my Verizon XV-6850 (HTC Touch Pro), and I'm having a problem. I've disabled the word completion in the Windows settings, I've tried the Diamond Hacks, the Diamond Tweaks, and I've even used PHM Regedit. Everything is set to turn the word completion OFF, but it's still there. I want to disable it, and I don't care if it's reversible or not, I simply want it OFF... PERMANANTLY. It pops up if I use the on-screen keyboard, and it pops up if I use the slide-out keyboard. Does anyone know what I can do to permanantly KILL this feature? According to the registry, it is disabled, but it is NOT.