ichat problem, help needed

[H4L]

Hey guys I was able to login to my ichat 20 hours ago and tried it out at home with another a/c on a macbook.

but just now when we are trying to try the screen sharing feature, it just won't work at all and now we can't even use the video chat feature...

when I started the video session, it waits 10 seconds+, then an error message showed up

and i checked the log

2007-11-15 21:32:07 +1300: No data has been received for the last 10 seconds.
Audio channel info: local machine using 192.168.2.3:16402, expecting remote machine to send to 192.168.2.3:16402
Video channel info: local machine using 192.168.2.3:16402, expecting remote machine to send to 192.168.2.3:16402

i have no idea what's that mean and what can i do now...

Someone can help me please?

thanks

edited: both imac and macbook are using leopard

 

[rmh]

Did you try restarting the computers and trying it again?

 

[H4L]

I tried to restart both computers a couple of times but it still the same do i need to do any settings?

 

[H4L]

Hi there I tried again today the video sharing is fine but I still can't use the screen sharing feature...