Yahoo transport not responding

Hi everyone,

I am having a problem with the yahoo transport. It is working perfectly on log on and i am able to chat with my yahoo friends.

The problem is if i am using the same yahoo id to log on some where else ( yahoo messenger etc) it is not showing me any message ( as normally it should be automatically logged out) and restrict me to chat with my yahoo friends.

It may be a bug of Yahoo transport or etc.

Please give me your valuable suggestions.

Gunjan