I\'m using msysgit running on Windows XP.
Tried Ctrl+V, Right click, Middle click, google... no luck.
Copy:
Long-term solution: Click on Topleft icon > Defaults > Select "QuickEdit Mode" under "Edit Options" > Okay
Then select the text you want to copy. Press Enter
Short-term solution: Click on Topleft icon > Edit > Mark. Press Enter.
Paste:
Press Insert
(If the "QuickEdit Mode" is on, Right clicking might work too.)