Views Exposed Crash when used by other than admin1 in a mini panel

I created a Views Exposed Search, and I was running it fine as a admin 1. Then I tried without being logged in and the views exposed crash. It looks to me as it has something to do with permissions..

I created a dummy user and gave him all the permissions by clicking all the boxes, and he can't run the search either...

The set up goes like that:

Views exposed with '' show in block'' Yes

Then a Mini Panel with the ''block'' in one side and the ''view'' in the other.

Here I put print screens of the results for the same search done by 'admin'

http://thomas-lucas.com/searchadmin.png

and by ''user'' (doesn't matter with or without privileges

http://thomas-lucas.com/searchuser.png

The 2nd one, besides having no custom css whatsoever, didn't run a search, since it shows all the elements...

Any ideas?

Thanks in advance!