I know nothing about .Net. What i see, Ask and Teoma show an extrem abnormal behavior.
They don't show results for german and french words. Maybe for other non english languages. For english search terms i receive only one resultpage. Try weather report or something what. When you hit the next link, Teoma shows again the first result page.
Before i send my message in this board i try again and..., wow, the old, normal results are back. No problem with german and french terms and the follow result pages are back.