"TB" wrote in message ...
I do connect the GPS to the lap so It looks as though this may be an
issue. I do run on charged batteries at the moment but the used thinkpad
that i use will run less than 2hrs on a fully charged battery. I tried
our local Radio Shack for the converter this morning with no luck. I
will check their web site for the part#

I think we went through this a month or two ago. Take a look
at www.lindelectronics.com Check out the inverters converters
or what-have-you listed down the right side of the window.

Leanne B
S/V Fundy