When using the IE driver with IE9, occasionally the Click method will only select a button, it wont do the action of the Click(). Note this only happens occasionally, so i d
I find the IE driver buggy and the same version of my code behaves differently on different machines with the same version of IE.
To get consistently before each action I do the following.
driver.SwitchTo().Window(driver.CurrentWindowHandle);//Force Focus
For me this makes the IE driver behave more as expected.