CodeWarrior Debug Problem

Hi all:
I have met a problem while debug with codewarrior.
environment:
--WindowsXP SP2
--codewarrior 3.1 professional
--Nokia 3rd SDK FP1

I just create a new application and start winscw debug. (actually any simple application
has this debugging problem below)

problem:
after I start debugging, the emulator starts, but after the "debug messages" prints
"PlatSecProcessIsolation = ON", the emulator paused and an call stack window comes out
like this:

xrpcrt.dll
...
kernel32.dll

and the assemble windows looks like

->7c812a5b 5e pop esi
7c812a5c c9 leave
7c812a5d c21000 ret 0x10
7c812a60 85ff test edi,edi

I must step over this assemble code and click resume, then the emulator comes out normally.

I never (actually cannot) set a breakpoint on kernel32.dll nor xrpcrt.dll. But everytime I startup
the debug, it stops there, and I must step over and resume. Also, while operating the
emulator normally (not my s60 application, just emulator's inherit app), it "may" also stop
at an DLL (such as kernel32.dll or other dll) and need "step over and resume" to go forward.

this does not affect the debuging work, but is very boring that I need "step over and resume"
every time the debug starts, and during I operate the emulator normally.

any ideas are appreciated.

leadwill.