>I was also wondering about another combo index I have. It is like this:
>
>

>   CREATE INDEX [IndexCombo2] ON [Reply] ([NoMember],[Read]) INCLUDE ([NoThread]) ON [Reply]
>

>
>This one includes two fields in the index. I also have a single index on Read. When a combo index includes two fields, is that field also within the same story as the other one which is that I wouldn't need to preserve the single index on Read?

Since the first field in this combo index is NoMember, then index on Read is different and should be preserved if it's needed.