CF-18 bottom panel screw sequence/service manual?

Hi, all
I'm having some issues with my toughbook after installing a GPS chip and antenna.
When I installed the GPS chip, everything worked well. I started it up and tested it with the bottom cover not screwed down, because I didn't want to have to unscrew everything should there be a problem.
There wasn't. I got everything all sorted out, and then I secured the bottom panel.
Then things got funky.
On reboot, at the Windows login page, the cursor arrow started jumping all over the screen. After shutdown, I removed the bottom cover again. Reboot, and the GPS and computer worked fine.
The problem seems to only come about when I tighten the bottom cover screws. The instructions hinted there was a specific sequence to tighten the bottom cover screws in the service manual. Does anyone have the sequence?
Thanks

 

There is no dependance - any sequence.
GPS doesn't work with bottom panel because your antenna doesn't work. IMHO.

 

http://forum.notebookreview.com/6206249-post8.html

And to download the GPS patch

http://forum.notebookreview.com/panasonic/356620-toughbook-drivers-manuals-sources.html

 

Thanks, Tomcat.
The Panasonic website has the GPS patch, but it does not have one that works for a CF-18 B. Teh earliest version Panasonic has it for is the CF-18 D.
Anyone know how to get around this?
Thanks again.

 

If a patch is not available at any of the many download sites you can use winrar to extract the D version and try that