When I first got my Inc, I tried to sync it with my corporate Outlook account, my primary contacts list, and it fed them all into People. I didn't like how native Outlook support worked, so I installed Touchdown, which also maintains a separate, almost equivalent version of my contacts. I then made the mistake of running HTC sync, which tried to take all of my PC-based Outlook contacts, and merge them onto my phone. Now, if I go to People, many entries are duplicated. If I select one and choose Edit Contact, it asks whether I want to edit in People or Touchdown. For some, If I choose Touchdown, it says "This contact was not found in the Touchdown contact list." But People has the contact and its info. For others, If I choose People, it shows only the contact name, but no contact info (phone, address, etc.). But Touchdown has it all. Other entries aren't duplicated in People, but if I select one, select Edit Contact, and select People, I get a list with "Select a contact to edit". For example: Fred [with a contact picture]| Touchdown (Android 2.0) Fred | Touchdown (Android 2.0) Fred | Touchdown (Android 2.0) Fred [with a contact picture]| Phone Fred | Phone Fred | Google Fred | Touchdown (Android 2.0) Selecting the ones with a picture takes me to a complete contact entry, while selecting the other ones takes me to either an incomplete entry, or an entry with name but nothing more. I thought I might start over with only Touchdown-sourced contacts, so I went to Settings > Applications > Manage Applications > People (with the contacts icon, not the phone one), and hit 'Clear Data'. I can't tell whether it made any difference. I'm thinking of a factory reset. I assume I'll have to backup & restore content to the phone & SD card. Will I have to repurchase apps? Or will AppBrain/Market let me simply restore everything? I just want to consolidate and de-dupe my contacts. Any thoughts on the best way to proceed?