Video conference between os x and vista

Hi, I am trying to have a video conference with someone on a pc from my mac. I am using iChat with the aim loggin and he is using the actual program aim. and every time we start a video chat, I get an error that reads "there was an error during your chat. What could possibly be wrong? I use ichat and he uses aim and we don't want to have to switch programs. Is there a compatibility issue here?

i think so

i'm also getting the same problem. i used ichat with other mac users, but when i used ichat with window users it wouldn't work. however that window user was able to connect to my window's computer. guess it is compatibility.

I was in the same boat as you....I tried everthing:

Ichat - aim 6.0
Ichat - aim 5.9
Mercury messenger - aim 6.0

Just get Skype, it works and its free

I second Skype. Just tried it last week and was very impressed with the video.