I thought I'd share my experience so far with my DInc, since it might help others who are having problems. I got my DInc around May or June of this year, and I thought it was pretty awesome--much better than the clunky Samsung Omnia running Windows Mobile 6.1. I did notice that it rebooted on its own once or twice, and I also noticed rare problems with switching home screens on its own (which I think was due to dust on the optical mouse). But on the whole, the phone worked well.
Then I updated to Froyo, and relatively soon after, the phone started to have more frequent reboots--it seemed to be related to the phone overheating, typically when the mobile network or wifi was on for more than 10-20 minutes. I tried uninstalling apps, changing from live wallpaper to static wallpaper, and finally doing a hard reset--nothing helped.
Finally, I called Verizon and complained about the frequent reboots--clearly, this problem makes the phone unusable. The customer service agent I talked to was quite friendly, and without much hesitation offered to send a replacement phone. I have been using this new phone (with Froyo) for about a week now, and so far no random reboots--really, no problems at all. It's back to being the awesome device that it was to begin with. Makes me think that many of the problems that people have is related to the actual upgrading process from 2.1 to 2.2, and that the phones that are originally flashed with 2.2 don't have as many problems.
Interestingly, the Verizon agent I spoke with claimed that he hadn't heard about random reboot problems, despite the many posts on these forums; however, he was quick to offer a replacement phone after I told him I had tried a hard reset. I'm guessing that the agents are trained to say that they are unaware of any problems because they don't want to admit that there are problems--but the fact that he offered a replacement phone so quickly essentially reveals that Verizon has been getting a lot of these kinds of complaints.
So what I would suggest to DInc owners who are having problems (especially after the Froyo upgrade) is to call Verizon, complain about the problem you have, tell them that you tried a hard reset without success, and ask for a replacement phone. It's a pretty easy process--they send you the replacement via FedEx, then you return your current phone in the same box--they cover the cost of shipping.
Hope this helps!
