Logout gives 404

After moving my gallery2 to another domain name, I now getting a 404 error whenever I logout of admin. My old gallery2 works just fine. The two are actually sitting on the same server. So PHP, Apache, MySQL are all same.

On both the logout link is pointing to ...

http://example.com/gallery2/main.php?g2_controller=core.Logout&g2_return=http%3A%2F%2Fexample.com%2Fgallery2%2Fmain.php&g2_returnName=album

The only difference is that in my old gallery2, the link takes me back to gallery home (which is correct). My new gallery2, the link takes me to 404 which is incorrect.

The URL that it ends up at is ...

http://example.com/gallery2/v/?g2_navId=x707ec6d4

Any guess as to why?

Gallery version (not just "2"): 2.0.1
PHP version (e.g. 5.1.6):
PHPInfo Link (see FAQ):
Webserver (e.g. Apache 1.3.33):
Database (e.g. MySql 5.0.32):
Activated toolkits (e.g. NetPbm, GD):
Operating system (e.g. Linux): Linus
Browser (e.g. Firefox 2.0): FF and IE