Need Help for search engine

Hello Everybody,

In the framework of the preparation of our website's launch, we are doing modifications on our search engine. In this respect, we have a technical problem on Mac and we need to know if this problem is present only on Macs or on a larger scale.

In fact, we need to do several tests on Macs*:

TEST*:

Can you tell us, please, what is appearing when you are on the search engine, and when you type PAR in the field.*?

Normally, a drop-down menu with all the countries, cities and regions refered to an ad which is present in our database is appearing, and all these parts start by PAR.
As an example, PARIS must appear in the results of the drop-down menu.

After, select Real estate for the category and launch the search.

What are the results please*?

Our actual problem is that it seems that the drop-down menu for the field doesn't open and also the results which start by PAR don't appear on all the Macs.
But having a little number of persons around us and having just one Mac, we need to have several opinions.
We want to thank you for your collaboration and do not hesitate to send us your remarks.
*
Thank you for your help.

Link of our website :
http://bit.ly/1jCxu0v