I have a Toshiba Satellite Pro 4600 laptop. This was working with wifi to a BT Home Hub with no problems. As the computer was beginning to get slow I did a complete hard disk format amd reinstalled XP. Now the wi fi link is playing up. The signal strength is excellent. When I check the wireless connection properties and enter the key (10 characters) I can then connect. However, after a few minutes the connection drops out. Rechecking the properties shows the key has reduced to 8 characters. Enter the correct key and the whole problem repeats. Any one any ideas? TIA