[waveydavey]

Hmmm.... I do think there's something in your contacts themselves that has been causing the half can half can't issue, but I fear until we get that back to that point that making changes to the contacts themselves might be a wasted effort. I know it's a real pain in the rear but I'd be tempted to uninstall Office and Activesync. Remove your Outlook mail profile (after exporting everything to PST first) then do a hard reset on the Touch. That way you're essentially starting from scratch.