MSSQL backup fails to either standalone or cluster

Networker server 8.1 (on Windows 2008 R2)

Networker clients all 7.6.5 (on windows 2003 R2 Enterprise)

All MSSQL 2005

The error is:

29100:(pid 7492): Invalid SQL virtual server name DIRECT_ACCESS=No

38563:(pid 7492): Invalid option -a

37758:(pid 7492): Usage: nsrsqlsv [ ] {path}

options: [-CGjqRTvkuHXZ] [-s server] [-N name] [-b pool] [-g group]

         [-S count] [-l level] [-m masquerade] [-U user [-P passwd]]

         [[-a virtual-server] | [-c client]] [-f aes] [-w browse] [-y retention]

path:    d-path | i-path

d-path:  MSSQL: | [MSSQL:]s-path [[MSSQL:]s-path [...]]

i-path:  MSSQL$inst-name: | MSSQL$inst-name:s-path [...]

s-path:  database | database. | database.filegroup |

         database.filegroup. | database.filegroup.file

43709:(pid 7492):Stop time: Mon Jun 16 11:25:17 2014

The message is the same even if i put the -a switch with server name (short - FQDN).

There no Client Direct checked and no Deduplication box checked.

I cannot remember how to overcome this so any help appreciated.

Thanks