[Ruby] Scripts failing on my machine and passing on other user's machine

[Ruby] Scripts failing on my machine and passing on other user's machine

I am trying to run scripts checked out from the server and it fails on
my machine
and the same script passes on all other machines.
It fails when it sees a dropdown and not clicking on the options listed
in the dropdown

Watir::Wait::TimeoutError: timed out after 10 seconds, waiting for
{:text=>"/01 Nationwide/", :tag_name=>"li"} to become present

I changed the browsers to FF,Chrome and IE but no use.

Any thoughts why the scripts are failing?? or what the issue is?