Stop Android Crashing when doing a Callto: command? (or Switching from 2D to 3D?)

Hi I am making an app which mainly displays 2D, but used to smoothy transition to loading 3D game levels.. but since a recent addition of new buttons that load images from the web, the App crashes when ever it goes into 3-D mode, and also crashes when I use the CALLTO: (make a phone call) command...

3 Questions:(btw I have PRO Android lisc. if that makes any difference)

1) How stop Android Crashing when doing a Callto: command? (or Switching from 2D to 3D?)

2) Is there a way to monitor the memory or Update() cycles going on, just before it crashes?

3) Is there a way to better manage my [12-20] Update() cycles that are running so they either stop or pause on some pages - as I suspect that may be why its crashing (Basically its got 8-14 buttons on the screen, that all have their own script, and are all using function Update() - which make the Phone or even testing PC CPU run really high).

Any suggestions would be greatly appreciated. DJKR