HI sirs, I recieve this error during RING: $ ring fullchip fullchip @@@@@@@ @ @@@@ @ @@ @@ @@@ @@ @@ @@ @@ @ @@ @ @@ @@ @@@ @@@ @@ @@ @@ @@@@ @@@ @ @@ @@@@@ @@ @@ @@ @@ @@@@@ @@ @@ @@ @@ @@ @@ @ @@ @@ @@ @@ @@ @@ @@ @ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@@@@ @@@ @@@@@@ @@@@ @@@@ @@@@ 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. The instance pad <pc> hasn't been found in the logical figure. What "logical figure" is this referring to? Is it my fullchip.vst file which I generated using genlib(fullchip.c) or my fullcore.vst file? WHy should this kind of error result since I had no problems in the previous step -generating fullchip.vst using genlib. I also have a (.rin) file. What can I do to correct his error? THanks Giie --------------------------------- Do You Yahoo!? Send your FREE holiday greetings online at Yahoo! Greetings.