Well I have 2 DV7 laptops and no issues. So it's not brand specific.

Looks like phondawgz has this figured out. I don't have one of his cables but I do have at least one of everything else and been using FTDI 2.08.24 driver on all PCs since it has came out. Same one that is listed in my cable install write up.

Even though there are newer one's out and even auto installed by Windows, I can not update mine, if I try it says I have the latest?

TOM, what drivers were installed on your XP machine when you did the cable and it worked?