1) The photo gallery stops reporting all pictures
This is quite annoying. The gallery will report that there are, for example, 44 images but when I browse to the folder with a file manager utility I can see there are more.
This is fixable by a reboot of the phone, but it's bloody annoying as it will happen again eventually.
2) Contacts stop being linked
Linked contacts is a reasonably nifty concept where you see, for example, your phone contacts, Facebook friends, Twitter contacts and so on in your phone book, but instead of, potentially, having multiple entries for some people, you can link them so you only see one entry with all the information merged into the entry you can see.
Good concept, but many of the contacts regularly get unlinked so I have to go through them and link them again. Very annoying.
3) HTC sense doesn't work
Well, the online part of it doesn't. One of the selling points of the phone is that if you can't find it, you can go to their website and send a message to to the phone so it starts ringing loudly. You're also meant to be able to lock the phone and post a message on it in case it gets stolen.
It should also keep a record of your contacts in case your phone breaks as well as your text messages so you can see them and reply to them even if you don't have your phone on you.
This did all work, but if it breaks for you you're screwed.
Their support people claim that they have been upgrading their servers and that's why it's not working.
This they have been claiming since about November 2010...
4) Doesn't sync contacts/calendar with Outlook correctly.
Well, I think I dealt with this in my last post -_-