Delayed incoming GTalk messages Recently, I performed a factory reset on my SGS (Froyo), since then all my incoming GTalk messages are seen arriving one hour before: if it is 5pm, the message is tagged 4PM. 

Well, I could live with that, but the problem is that my responses are tagged with the right time, therefore any further incoming messages will be placed vertically before my messages.

I have tried changing the time, change time zones, accept network-provided time, and nothing seems to work...

Had this happened to you?How can I solve this problem?

Thanks
This sounds like an issue with Summer Time vs Daylight Savings Time? Most parts of the world are still running on Summer Time right now, which is generally +1 hour to your actual time zone.

As well as checking your phone's time zone, check to see if you have the correct settings for summer time/daylight savings set.