If you have multiple Google ID's, and want to use them at the same time on Google Talk here is a nice trick to achieve this.
- Right-click GTalk shortcut and select Properties.
- The shortcut properties dialog box as shown below should popup.
- Just add /nomutex to the existing text (as shown below).
- Now you can launch multiple windows and use different ID's.
If you have multiple Google ID's, and want to use them at the same time on Google Talk here is a nice trick to achieve this.