This paper describes our experiences in an ongoing collaboration between our research group in Palo Alto and a similar group in Japan based on semimonthly videoconferences. Due to cultural and language barriers, we found it important to use a variety of communication techniques, ranging from audio and video to text-based chats. During the collaboration, we encountered a number of technical issues that caused communication breakdowns. To improve the videoconference experience, we developed tools to support different aspects of a videoconference, including a system for panoramic two-way video communication that digitally combines images from an array of inexpensive video cameras, and a system the remote display of presentations. In addition, we made design changes to our conference room, and added support for taking meeting minutes and for reviewing captured videoconferences. These changes have resulted in an improved videoconference experience and in a more effective collaboration with our Japanese colleagues.