Netgear router MR314 and ASUS PCI card WL-138GE compatible ???

Are the 2 above items compatible? The netgear wireless MR314 is 811b, 11 MBps thruput, and the ASUS PCI cards are just bought 2 weeks ago. They are internal cards with the small antenna.

I get with one desktop which has this Asus card a very low signal, even though the computer is only maximum 20 feet away and only an internal wall, no electrical wires or plumbing in it, separates the 2 computers.

The 3rd desktop with the Asus PCI card does not get a signal at all, even though it is the most up to date and fastest computer of the 3.

All run on Windows XP.

Any ideas?