How to do it:
1. Create a shortcut to GTalk
on your desktop (if you
dont have currently).
2. Go to the properties of
the shortcut. There in the
target, you ll see
something like: C:
Program FilesGoogle
Google Talk
googletalk.exe
3. Add /nomutex to that
target line. Then the line
would be ( Include the
Quotes in the address) :
C

rogram Files
GoogleGoogle Talk
googletalk.exe /
nomutex
4. Apply it and then click
Ok.
5. Check out if it works,
Enjoy Multi-GTalks!