On Fri, 20 Feb 2004 18:46:50 -0600, Bill Seurer
wrote:

Veggie wrote:
Worse yet, there is no corrective
action with the mildew as it seems to grow *into* the silicone.

Actually, the corrective action is preventative: clean more often to
prevent the mildew from growing in the first place. There are all kinds
of harsh chemicals you can try now to clean it up. Ask at a tile store.

Is there some chance the mildew is coming from behind the tiles?