> interface - call it VirtualRichSeq ? Perhaps we'll need the equivalent > PrimaryVirtualSeq and VirtualSeq? EmptyRichSeq,EmptySeq? Really don't like Virtual, guess because of my ensembl background... Elia -- ******************************** * http://www.fugu-sg.org/~elia * * tel: +65 6874 1467 * * mobile: +65 9030 7613 * * fax: +65 6777 0402 * ********************************