If you are having trouble tethering without a tethering plan and are tired of having to switch user agents or can only get mobile websites to load then try this method. So far i have tested this on Mac and Windows and both seem to be working flawless. Download and install the Seamonkey browser. Then open the browser. In the url line type about:config then click the button that says ill be careful i promise. Then in the bar that says search type user. Now find the line that says "general.useragent.compatMode.firefox" click on it to change the toggle from true to false. If everything was done correctly you will now have a fully functioning browser.