97 C1500 Daytime Running Light problems

I noticed a few weeks ago that my DRL no longer come on. My parking lights come on, the green headlight symbol comes on the dash, but the headlights do not automatically come on, unless switched on. Has anyone else had this problem and is there a fix for it.

Read this thread it may help:
http://www.automotiveforums.com/vbulletin/showthread.php?t=763882