Partial connect to wireless network

Acer Aspire One netbook
Win XP-SP3 Atheros AR5007EG network Adapter
Driver: 7.7.0.523 (6/4/10)
Wireless network at home using linksys Router Works Good. Go to new location and Acer will not connect to new wireless network completely. Able to send and receive e-mail but cannot Browse with IE or Firefox or Chrome. Can you help at all?