Phone App's "End Call" button sometimes hangs and won't press!

Question

Ever since the 1.4 update, about 1/4 of the time, when I'm trying to end a call, the screen does not react to my finger/button press and it won't end the call! I've also found a few times that it won't press a button (e.g. #1) on a call as well.
This is a CRITICAL problem.

Answer 1

TreoAide wrote:
Hello all;
I haven't experienced this myself, however are you able to flick the phone card off the screen with no delay? Does this happen when receiving a call while you're doing something else (tweeting, playing a game, etc)? Does it happen on outgoing calls as well? How about while using a headset (wired or Bluetooth) or speakerphone? Also, so far on this thread, I only see Sprint Pre's with this issue. Any Verizon Pre Plus users see this? How about on a Pixi (either flavor)?
Need some more information for troubleshooting, may also be beneficial to call technical support from a landline phone.
Hope this helps,
TreoAide
I can answer a few of these but not all:
-It occurs even when it is the only app open (frequently).
-It occurs on incoming calls, outgoing calls, and voicemail calls.
-It occurs while using the phone's earpeice, speakerphone, and while using a headset (plugin, not bluetooth, I don't own a bluetooth unit).
-Essentially, I haven't ended a call *without* this 4-6 second delay a single time since before webOS 1.4.0, and it occurs under a wide range of usage conditions.