Drop-down primary links only fit for 24 characters

I am using Drupal 6.13 & Sea Breeze 6.x-1.0-beta2.

The problem is that the drop-down primary links only (best) fit for 24 characters (including space), it will cut the text and not wrap the text longer than 24 characters like other themes that using other drop-down menu method (suckerfish, superfish, etc.).

Any suggestion to make the drop-down primary link could wrap the text larger than 24 characters like other themes i. e.: Acquia Marina, Pixture Reloaded, Roople Themes, etc.?

Regards,
Eka S. Gunadi