>This machine is connected to the web by our server proxy (ADSL).. WIN98
>
>Since 2 days ago, I've been facing a very strange behavior here at UT's chat area..
>
>The refresh button is bringing me not the unreaded messages but some old messages (of 1,2,3 days ago).

First, we need to verify that this is really the cause. Try to go to UT without that connection. If it works, then we'll proceed with the proxy verification. Assuming that case, we have seen that before. You just need to verify that your cache is well set in it.