choose which computer to sync iPhone with, set that for future
If there is more than one computer in the network running Task Coach, my iPhone Task Coach app initially asks me which computer that I would like to sync with. Thereafter, it will sync only with the last computer that it synced with, instead of offering me a choice.
Probably the best way to deal with this would be to have an option in the settings for the iPhone task coach, to always sync with the last computer (if available), or to offer the choice (like it does now).
Gavin Windsor commented
This guide may help you sync your iPhone with your PC.