I'm sorry to bring up something that's not directly GTD related here, but it was the only place I could think of that might have some ideas.
I splurged on a brand new Tungsten E about 2 weeks ago, and it's about to drive me INSANE!
My office at work is very cold (around 65, I think), and whenever my E is in the office for any period of time (and gets too cold), it either won't stay turned on for more than a second or two, or it'll freeze until I do a soft reset.
But if I take it outside my office, into a reasonable temperature (70-75 or so), after 5 or 10 minutes to warm up it works just fine.
Any suggestions, ideas or input would be appreciated -- it's frustrating me to the point that I'm about to take it back as being defective!