To resolve a conflict, you should look at it from the other side. Listen carefully to your colleague's explanation of the situation. Then ask him to try to look at the whole issue from your perspective. This will help you find out what you need to improve next time.
If you can't resolve the conflict, ask a third party, who is not involved in the conflict for help in finding common ground.
Talk with your colleague about how you managed to overcome the current problem. This will give you a shared experience that will shape your common identity.
Prevent future conflicts by visiting the colleague in his office, or inviting him to yours. You will get to know his working environment and related problems better. If you can't meet in person, talk about your working environment and schedule, at least on the phone.
Use all possible opportunities to talk informally to each other and learn as much about each other as possible. For example, you may install an instant messenger to exchange short messages during the day. The better you know each other, the better you can work together, even if you can't see each other.
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Article source Harvard Business Review - flagship magazine of Harvard Business School