HTC Desire HD Boots Loudly and Nightly

I've been noticing that HTC have been doing stealth updates of their "HTC Sync" (and probably sense etc), I think this had fixed my nightly reboots as I haven't had any for quite a while but they are back.

I've been woken up the last 2 nights. I've rebooted the phone as its been 17 days just in case but I'm guessing I'll probably get woken up tonight :-(