Wired and Wireless with a notebook

[Dazed_75]

My laptop (Toshiba 5105-S701) has both wired ethernet and built-in
802-11b.  At home I normally plug in the wired ethernet.  The Wireless
is used when I have the laptop away from the computer room (wheter
home or away).  The issue seems to be that when I bring up the system
(Ubuntu 5.10) with the ether cable plugged in it finds both
interfaces, leaves both enabled and refuses to resolve URLs until I
use [menu] System/Administration/Networking to de-activate the
wireless.

Note that both wireless and wired interfaces are being issued separate
IPs (e.g. 192.168.1.106 and 107) by the same Linksys router (which
also contains the AP) and should be issuing the same DNS IPs from my
ISP (/etc/resolv.conf only contains the usual pair).  One would think
the system could use EITHER interface succussfully.  Something is
getting in the way and I would love to learn how to avoid this issue. 
BTW, this issue is not unique to me.  I have talked to several people
with the same problem including at least one other PLUG member.

Suggestions or references anyone?
--

Nothing is really work unless you would rather be doing something else.
  - James M. Barrie