[gabrielt]

Same issue here. I use a product called "Google Seach 1.0", which I can't remember where I downloaded it from. However, even if I didn't have this product installed, what the original poster explained happens here. For guests the Search link is just a single link to search.php, while for registered users the Search link expands to show more options.

--------------- Added [DATE]1322077929[/DATE] at [TIME]1322077929[/TIME] ---------------

Phew, I finally could understand the logic behind this. If the image verification for searches is enabled, the drop-down menu is disabled, because there is not enough space for displaying the verification image.

Therefore, to enable the search drop-down menu for guests/visitors, you have to go to:

vBulletin Options -> Human Verification Options

You need to uncheck "search" and save. The drop-down menu (quick search) will now show for guests/visitors.