anyone know how to uninstall the groupwise client 7 from a workstation in silent mode? Right now I use zenworks to run

MsiExec.exe /I{CBA40CBC-05A3-418D-84F6-E891AC48BED3}

but this prompts me with questions. so i run /qn on the end of the string and of course its silent but still doesn't install because those questions are still not being answered!