[Chicken-users] help -- segmentation fault when (import chicken)

[HP Wei]

Machine: iMac Mac OS X 10.6.7

I installed chicken by the following command:

sudo port install chicken

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The resulting csc is used to compile the (print "hello") successfully.

csi can also be invoked ok.  
(version 4.4.0)  macosx-unix-gnu-x86-64 [ 64 bit manyargs dload ptables ].

However, in csi,  the following results in Segmentation fault !!

#;1> (import chicken)

Can anyone tell me how I can resolve this ?

Thanks
HP