Hello. I'm new to this forum, so please excuse any faux pas on my part. I would like to collaborate with my writing partner via screen sharing. We both use Logic 8 Pro. We both are using Leopard on Mac Pro computers. We have tried IChat with some success. However, it's hit or miss. For example, we have logged on and shared screens for a half-hour or so and then logged out and tried to share again a few minutes later with no success. I wonder if this is internet speed problems (we both have high-speed connections) or perhaps a router/firewall issue?? The last thing we tried was Skype, which worked consistently. The problem here is that the quality is low. I would appreciate any advice on this issue. Thanks.