Few things.
Did you install all the hacks for weather panel?
2nd, Mogul seems to have issues with it's default settings for when the unit is on the network. If you even update weather every few hours that will usually keep it on the network all day. See the battery drain thread (also linked in the wiki) on how to adjust registry for power and protocols.
I used Weather panel for years including on the 6800. But as a few others mentioned it's a little unstable on 6800 and can cause issues. I finally dumped it and went with Fizz weather. It's missing a couple features weather panel had but it also has a bunch feature weather panel didn't. It's also very stable on WM6.
Oops forgot what site I was on. See the battery drain links at the bottom of this wiki page.
http://pdaphonehome.com/forums/mogul...6800-wiki.html