I'm using Selenium with Capybara (Ruby) to execute some tests. I needed to create another environment to execute my tests, but I have the following problem in the new machine: when I try to execute the tests using the IE Driver, when the visit method is called, it shows:

<font class="small">Code:</font><hr /><pre>Started InternetExplorerDriver server (64-bit)
Listening on port 5556
HTTP request path is empty (ArgumentError)...
</pre><hr />

and the IE is not launched [img]/images/graemlins/frown.gif[/img]

I'm using selenium-webdriver-2.25.0, capybara-1.1.2, the latest iedriver (August 9th) and ruby 1.9.3. The error occurs even with the same version of all gems, devkit, ruby and iedriver. But if I try to use the default firefox driver, it runs ok (but I need to use this new environment with IE [img]/images/graemlins/frown.gif[/img] )

Does anyone know anything about this error?

Thanks for any help