managers

I am a new user to your forums and in need of some help if possible. I reinstalled XP due to various problems that i was experiencing and now my laptop will not connect wirelessly. I have a Netgear router DG834G. It says that there is a wireless connection but will not connect to the internet. As soon as i switch to the Ethernet cable it will connect straight away, no problems. Netgear will not help me as i am out of the warranty help period apparently. Any help appreciated.