I'm assuming you're removing it via the registry so that the item doesn't load. That will cause problems because it also provides functionality to some of the hardware buttons, as you've discovered. The best you can do is hide the lookup field (Menu-->Preferences-->Hide Lookup Field), or...not too long ago someone created an app (it might have been a mortscript script) that will forcefully hid the entire carrier/dial lookup item, without actually unloading it. Search the 750 forum.
Originally Posted by imsachin
If I remove the dial pad plugin, I can't lock the device by pressing the "End Call" button or dial #s without going into the dial pad app. I have the AT&T WM6 and ExtendedRom.
Anybody else having the same problem?