New setup - cant deploy to users - installation could not be started

Hi guys

OK i have installed

Enterprise Console 5 on a server 2008 machine.

I had problems with the database at first and it wouldnt load the interface.  Followed steps online and after lots of messing around I managed to load the console succesfully.

I have managed to protect the server it is already on OK

However, this is a new domain with new antivirus - I can see the 1st workstation i have setup when I do a scan via active directory.  But when I try to protect the computer after a while I get:

Installation could not be started 0x0000002e

Ive done the usual google searches and cant get it to work.

The workstation I am trying to protect is windows 7 64bit.

I have tried to follow the below:

http://www.sophos.com/en-us/support/knowledgebase/111180.aspx

I think I have done it correctly 

Firewall rules and services seem to be correct.

Are there any tests I can do to see what I have missed?

when i do protect computer the administrator password is accepted but then at the end i get the error

Can it be to do with a problem connecting to the database still? If i right click the problem computer in sophos to view computer details i get the error "cannot open database sophos51.  Login failed for user sophosm (which is what the account is in active directory)

Any help appreciated, I did try to follow the setup steps but what they dont seem to match with what I have on screen

thanks!