ok well the length of output can't be an issue nor can the MORE option for addtional screen output.
i ran the following command sequence not alot of output :)
ucs6120c-B# scope system
ucs6120c-B /system # show version
ucs6120c-B /system # exit
so i tried it in the code updating the cmd variable... i get the same results "% Invalid Command at '^' marker" which happens when you issue a command not recognized. so i again i don't know why i am not able to run 2 commands at a time?
using (var client = new SshClient("184.108.40.206", "admin", "password"))
var cmd = client.RunCommand("scope system;show version");
string temp = cmd.Result;