Hey, I'm not sure this is the correct place to post, please redirect me if not.

My HTC Desire arrived today, purchased through eking.co.nz.  It's a beautiful piece of hardware, everything I'd expected and more, however it spontaneously rebooted a couple of times when I was playing with it initially.

I put this down to not having a SIM in, but putting one in didn't stop the reboots, and they became more and more frequent until it just went into a continuous cycle of reboots.

After leaving the battery out for an hour or two, it started up again fine, only to begin the same thing after about 20 minutes' use.  The reboots seem to become more frequent the longer it's switched on.

I managed to do a factory reset this time, which has also made no difference.

A bit of searching shows up a few others around the world with a similar problem, and a couple of them seem to have had this fixed by sending their phones back to HTC, where the ROM was reflashed.  No hardware replacement required.

With this in mind, I turned up the following Modaco post:

http://android.modaco.com/content/htc-desire-desire-modaco-com/307683/howto-unroot-your-htc-desire/

detailing how to flash a Desire back to stock ROM (which is essentially what I want to do).  The current ROM is a UC (Unicom China?) one, with some software I don't really want.

Does this seem like a reasonable course of action for me to take?  Has anyone else experienced a similar problem?