Acer laptop with Vista.

Wireless access of a Linksys Networker.

Network is defined in "Manage Networks"  as "Manual Connect".

First several weeks of laptop ownership, configuration worked
properly.

Just recently,   Vista does autoconnecting.  I dis-connect,  it re-
connects automatically.

Manual/Auto  property of network  hasn't changed in "properties" - it
still shows as "manual".

What the foxtrot is going on?