Buster,
I don't know that I can offer any help except to tell you that I have a presario with an Orinoco Gold card. The card worked great with other laptops but when I put it in the compaq it did the same thing - low signal, dropped all the time. I was thinking it was a physical problem with the card but when I put it back in another laptop everything was great.
About a month ago I ran Windows Update for the first time in a while and after a reboot it popped back to 100% signal strength and has been rock solid ever since.
I'm inclined to think it's a coincidince, but who knows...it's worth a try. I didn't see anything specific to the driver or wireless that got installed.
------------------
-alan in sitges, home of
Si-Do