g1smd - 9:19 pm on Apr 25, 2010 (gmt 0)
Try manually adding
&filter=0 to the end of the google.com search URL, and see where it gets you.
Also, make a decision to use 10 results per page or 100 results per page and then stick with it. You'll get different results if you use a different number of results per page.
&num=100 is a quick way to force 100 results per page.