You are posting to a dead end link started 1998. It is not visible on the active board. To post a message click on Bob Vilas Fix-It Forem at the top left of this page. Do not click on Post a Follow-Up Message.
This happens when you use a search engine to find the topic and click on Post a Follow Up Post.
There is a Bulletin Board topic dedicated to this question. Copy and paste this link in your browser. http://www.bobvila.com/BBS/Safety_Environmental_and_Hazardous_Materials/flat-page1.html