Intel WiFi 4965 AGN / Vista - powers down Router - help?

I have a Lenovo R61 laptop with Intel 4965 AGN #2 card that connects
either wireless or wired & surfs just fine until I click on any kind
of map. It happens at other times as well, but nothing I can isolate
so specifically. I can watch the router as I try to zoom in on a
Goole map, & it completely powers down & restarts. I have another
laptop running XP that works fine. Has anyone heard of this? Any
suggestions?? Thanks.