Google Thinks I'm a Virus

Google’s ten results per page limit helps keeps things in context and the user is not bombarded with too many search results. But over the years I have learned to handle the the results I get from a Google search, and thus like to keep the results to display per page at 100. I would have liked to set it to even higher, but that the maximum Google allows. For the “uninformed,” to increase the number of results per page, click Preferences on the Google homepage and choose the required number from the Number of Results drop-down menu followed by Save Preferences, which returns you to the Google homepage.

merged.gif

I reset this option each time I clear my cookies but earlier today, instead of being redirected to the homepage, Google displayed a page with the following message:

We’re sorry.. .. but your query looks similar to automated requests from a computer virus or spyware application. To protect our users, we can’t process your request right now. We’ll restore your access as quickly as possible, so try again blah, blah, blah

As a workaround, I cleared my cache and restarted the browser. This resolved the error but am curious to know what made Google think that I am a computer virus or spyware application? The last time I saw the mirror I remember seeing a human, I knew the sandwiches I had for lunch tasted strange!