Harvs - 3:45 am on Dec 1, 2004 (gmt 0)

I have a heading on a page which hasn't had anything special done to is, just font-size, font-weight, letter-spacing and couple of other visual adjustments using css. The problem is in ie6 the text sometimes just disappears. There is still a space left for the text and if I highlight the text then click away the text displays as normal. Anyone have any ideas what might be going on?

I'm sorry this is a tough one to explain without seeing it in action.