I turned my girlfriends laptop on today and it will not connect to her wireless network. It sometimes disconnects but restating the adapter usually works but now it wont work at all. In the tray there is the 4 signal bars with a yellow triangle over them. I have tryed restarting the laptop and the adapter with no improvement. There are 3 other laptops and a desktop connected to the network with no problems. The laptop is an Acer Aspire 7730 running Windows 7 Ultimate. The network is set up using a lynksis wireless G router on Virgin Media as far as i know. Is there anyone who knows what i can try? Thank you in advance smartyp