OLPC wifi interrupts wireless internet connection of _other_ laptop

[Oliver]

> Because of you comment on router possibly not being able to deal with a
> certain number of wireless clients, I get that you seem to have a lot of
> wireless clients. Is that the case? If you have other clients are they
> working ok when the XO is on?

thought about that but it's not the problem as every other client
works fine with the AP.

> And the XO? Does it associate to the linksys AP?

The XO connects to the AP just fine but as soon as it's turned on the
other laptop fails to make use of the built-in wireless card. I can't
scan for networks (Windows only so no iwlist...), can't connect,
nothing. But after turning off the XO and rebooting the windows laptop
everything is fine.

So strange...