Dear visitors now we can login through more than one g talk id from 1 system at same time.
you have to do a small thing
1. open property of start menu> all programs>google talk>google talk
2. In property window type /nomutex after target text
3. click apply then press ok.
Now you can use this shortcut to open multiple google talk.
Concept of this trick: this trick remove mutual exclusion (mutex) from googletalk.
mutual exclusion is an operating system concept.