Have you encrypted (WEP) the Linsky router? If you have you will need to do the same for the laptop.
Is the laptop set to connect to Ad Hoc rather than Infrastructure networks?
Go to Network Connections on the laptop and highlight the WiFi card. What does it say in the left hand pane?
From there press <View Wireless Networks> then <Advanced Settings> <Wireless Networks> <Advanced> and see what type of networks are approved.