I wanted to ask is anyone experiencing the same problems. I'm using Spark with Gtalk gateway. On the other end is the users using Gmail (webmail) and it's integrated gtalk.. web applet. It seems that some such users can contact me. Or to be correct, i'm not getting their messages. But not with all of them. I have tried with my brother, and we were able to chat. Though i cant get offline messages and gmail warns him about that. But i cant get a message from my other friend even when i'm online.
And one more problem which i have reported probably years ago. After some time my gtalk contacts in Gmail become away. Though if i relogin they'll appear as online again.