Nancy, Put a resistor from node 3 to ground. Like a 100meg ohm resistor. Rdum 3 0 100meg -----------------circuit script ------------------ .option post = 2 .ac lin 100 1e6hz 5ghz vs 1 0 ac 1 rs 2 1 50 c1 3 2 1e-12 c2 3 0 2e-12 .print ac vm(3) .end --------------------------------------------------- **error**: no dc path to ground from node 0:3 -------------------------------------------------------------- | Bill Cohen | Toshiba America Electronic Components, Circuit Design Group ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu