Google rejects Uniquity search queries as automated requests.

Is Google associating Ubiquity search requests as automated querying and rejecting the search? I checked my computer for spyware and it came up clean. The problem went away, but then a day later, after using Google search many times, I again tried using Ubiquity 'Google [keyword]' and it was rejected by Google as a possible automated request. Ubiquity queries and Google IP flagging seem causally related.

Is this happening to anyone else?

Here is the specific Google error: http://www.google.com/support/bin/ans...