Thank you for the fast reply.
I do have the latest .net framework, however i do think there is something wrong with the LDAP. Im not too strong on this subject.
LDAP://chs01.crickhowell.internal/{0}OU=Teaching Staff,OU={1},OU=Establishments,DC=crickhowell,DC=internal
Do i need the {0} parts? or is this part of the CHS domain?
Thank You