Problems setting up Disco on Amazon EC2

[y...@cs.ucsd.edu]

Hello,

I was following the instructions at http://discoproject.org/doc/start/ec2setup.html#ec2setup.
At Step 3, when I ran the following command at my local machine,

$ python setup-instances-0.1.py id_rsa-gsg-keypair

The python script complained that

"Finding instances..
No EC2 instances found. Start some with ec2-run-instances or wait for
a while if they are pending.
"

However, I had started up 5 servers successfully by

$ ec2-run-instances -n 4 -t m1.large -k gsg-keypair ami-e69d798f

The four instances were running as shown by ec2-describe-instances and
my Amazon's ASW Management Console (they were running for quite a
while before I ran the python script)

Have anyone seen this problem before?

Thanks a lot for any help!

--Yu

More information about my local machine where the python script was
running

python 2.6
suse linux 9
IBM jdk 1.6