Pls could you help me regarding the vdd/vss error that manifests like this. I really dont know what to do as I have been stuck here for about one week. @@@@@@@ @ @@@@ @ @@ @@ @@@ @@ @@ @@ @@ @ @@ @ @@ @@ @@@ @@@ @@ @@ @@ @@@@ @@@ @ @@ @@@@@ @@ @@ @@ @@ @@@@@ @@ @@ @@ @@ @@ @@ @ @@ @@ @@ @@ @@ @@ @@ @ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@@@@ @@@ @@@@@@ @@@@ @@@@ @@@@ PAD ring router Alliance CAD System 4.5.0, ring 2.11 Copyright (c) 1991-2001, ASIM/LIP6/UPMC E-mail support: alliance-support@asim.lip6.fr o reading netlists, layout views of core and pads. o reading file of parameters, including the placements of pads. o making equipotential list. o making the first placement of pads. o filling data internal structures. o reading the connectors positions of the core. o computing the best placement of the pads. The pads <vdd> and/or <vss> aren't place in front of the side 'W' of the core. You may place again the supply pads, in order to center them in front of the core. Where is the source of this error pls? is it in my (.rin) file or in the (.ap) core file viewable with graal or where. Pls how do I correct this error - i mean what do I do. I have tried arranging and re-arranging my (.rin) file over and over again about 15 times already, but then the position in the error changes from West, to east, then north and then south and later back to west. Pls what do I do. Here is my (.rin) file. north ( sa sb ) west ( sc s0 vssi sd s1 ) south ( yy NCpad ) east ( vdd vddi vss) PLS I NEED HELP. THANKS Giie --------------------------------- Do You Yahoo!? Send your FREE holiday greetings online at Yahoo! Greetings.