Selenium WebDriver C# always unable to find anything on Internet Explorer -

i wrote simple automated test visual studio 2012 c# , selenium webdriver. works fine on google chrome (it little slow). code has works on internet explorer..but..selenium web driver unable find web element..only if search id, css, xpath, name..

i thought code.. if try simple search on google have same problem.

    using system;     using system.collections.generic;     using system.linq;     using system.text;     using system.threading.tasks;     using openqa.selenium;     using openqa.selenium.ie;     using openqa.selenium.remote;     using openqa.selenium.environment;     using openqa.selenium.support.ui;     using openqa.selenium.interactions;     using system.windows.forms;     var options = new internetexploreroptions();     iwebdriver driver = new internetexplorerdriver(@"c:\users\iedriverserverpath\iedriverserver.exe", options);  driver.navigate().gotourl("http://www.google.com");   driver.findelement(by.id("q")).sendkeys("webdriver"); 

chrome goes on google.com , sends "webdriver" in search box.. ie goes on google visual studio "explodes" on "obsolete element" error.. "unable find element id == q" (also xpath)

i'm forgetting settings ie?

update

set correctly iedriverserver in path , worked..sorry i'm rookie..