Hi,
I have seen this problem on some phone models such as Nokia 3120
Classic
It usually happens on phones with small internal memory
When you load many programs one after another lots of memory is
allocated and the phone memory is exhausted
You won't see this problem on phones with large internal memory such
as Nokia 5800 or Nokia N97
The only solution that I know for the moment is to restart CBP again.
I did not find yet a way to use the phone memory more efficiently when
loading lots of programs one after another.
If I find a way I will let you know
Yossi Kadosh