Urgent help Serin2 crashed!!

Dear Forum:

I have made this code on 18f452 then ported to the 18252 but doesnt work
only is executed 3 times the code is:
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DEFINE OSC 20
INIT:
SEROUT2 PORTC.6,188,["CONTINUE TEST?",13,10]
SERIN2 PORTC.7,188,1000,INIT,[WAIT("&&"),STR EXTE\3]
SEROUT2 PORTC.6,188,["OK",13,10]
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OUTPUT ON HYPERTERMINAL

CONTINUE TEST?
CONTINUE TEST?
CONTINUE TEST?

and halt wHAT i CAN DO?