Comment 3 for bug 927680

the problem is that, for the "browserName" that you need pass to "webdriver.Remote" should be "internet explorer" for IE according to: http://selenium.googlecode.com/git/docs/api/py/webdriver/selenium.webdriver.common.desired_capabilities.html#module-selenium.webdriver.common.desired_capabilities
But what you required on command line is "Ie" which cannot be recognized by webdriver. Moreover, it seems you have to specify the platform to "WINDOWS" for IE as well or it will have problem.