empty json data

[geoUser]

hello,

my google latitude program was working fine till last week when the
json response my program was receiving was empty.

{"data":{"kind":"latitude#locationFeed","items":
[{"kind":"latitude#location"},{"kind":"latitude#location"},
{"kind":"latitude#location"}]}}

here is my rest call (with the sensitivity keys removed):

https://www.googleapis.com/latitude/v1/location?max-results=3&oauth_consumer_key=XXX&oauth_nonce=XXX&oauth_signature=XXX&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1319409680&oauth_token=XXX&oauth_version=1.0

any idea whats wrong?