N nikke1000 FS Member Apr 14, 2010 #1 I have left 4 dead ncf/common files and my steam is saying download paused.... I can play if i go to common/left 4 dead and click on l4d.exe My all files are "file is valid" and 100% //I cant download l4d authoring tools :S ?!?!?? HELP PLZ!!