Dell OptiPlex GX270, Small Form Factor Desktop - firewire card driver?

Hi,

I got this nice small XP up and running perfectly about a month ago. Suddenly there are multiple problems which I thought were history because all the drivers for this XP were laboriously downloaded over a year ago when I began installing new components including a hard drive.

Tonight the firewire card stopped being recognized by the pc. I took it out and reinserted it. XP recognised it (again) but then started asking for drivers. This card has been on the pc for over a year, I've gone through the driver game with this card. Now suddenly the pc says it hasn't got a driver for the card, so the card isn't working (and I can't plug my dv cam / project to the pc [grrr] after weeks of preparation).

Can I find a generic Windows Microsoft driver for this card please on the Internet?

The card details are: OHCI Compliant IEEE 1394 Host Controller

It is listed under Device Manager with Microsoft Driver July 1st 2001 version 5.1.2535.0

I can't ask XP to auto surf the web for the driver because XP has also suddenly refused to recognise my broadband connection - despite the fact I manually downloaded a Windows Microsoft update over broadband about 2 hours ago to the very self-same pc! (sigh)

Thanks,

Ric