been in secondary for about a week. This weekend I was gone and when i came back I realized I had left the light on in my "brewery" (read converted walk in closet). Before this the beer was actually pretty clear. when first racked it had a slightly alcoholic smell to it, before this weekend that had given way to a sweet smell. well when I got back i noticed what looked like dry yeast floating on top of the beer along with some foam, but not even enough to cover the whole top (did not have enough to completely fill 5 gal secondary). for the past 2 days though the "head has increased to about a 1/2 inch to an inch and you can still see what looks like dry yeast in it. Also it has a yellowish cloud towards the top.