I develop a game for nokia s40 handset.
it build success, and when i run it use following script

C:\java\j2sdk1.4.2_04\bin\java -classpath "C:\java\j2me\n40\Nokia_Series_40_MIDP_Concept_SDK_Beta_0_3\tools\emulator;C:\java\j2me\n40\Nokia_Series_40_MIDP_Concept_SDK_Beta_0_3\tools\emulator.jar" -Demulator.home="C:\java\j2me\n40\Nokia_Series_40_MIDP_Concept_SDK_Beta_0_3" com.nokia.phone.sdk.Emulator -jad "C:\UniJa21\apps\%DEMO%\bin\%DEMO%.jad"

after a game loaded, i click launch on the emulator, it shows an alert on the console as following:
ALERT: No such method setFullScreenMode.

what's the reason, and how can i deal with it

thank for you attention and hope you give a hand