Jerome,
Thanks for your reply but it doesn't seem to have worked. Last night, before you responded, the card started working although I can't work out why it did so. After rebooting, it went dead again.
Which order should I install the drivers in? I did Broadcom 802.11 Adapters Driver 1E, and restarted the laptop, Broadcom Network Adapters User Interface, restart, USR drivers from my CD, restart and insert wifi card, then windows installed the card and I got the same error. Is that OK? I now see that a new driver 1F has appeared, which I'm about to try, fingers crossed.
Thanks again,
Alasdair