Do me  favor on your desktop click on your steam ,go to settings and to downloads make sure that is in the correct connection if not it will create e a lag  that is unstable(I have not had thid problem in while and it usally acures after a steam upbdate dont know why but check it I brother pastor had a problem just like that and it help correct it. <img src="http://www.clanlod.net/ipb/style_emoticons/<#EMO_DIR#>/dry.gif" style="vertical-align:middle" emoid="&lt;_&lt;" border="0" alt="dry.gif" />