Accpac 5.5A, workstation install

Vista

Office 2007

when I start the Statement Designer, I get this Excel error:

Microsoft Visual Basic

'Run-time error '-2147467259 (80004005)':

Method 'OnAction' of object '_CommandBarButton' failed

I click the button "End".

Then I get two AccPac errors reported:

1.  Error cmdStart: Error on running InstalledAddinAndXLStart in xla macro.

2 Error Problem uis found in funning Financial Reporter Addin

Set Excel macro security to low or medium.

Try the steps in Solution ID 26267 in our Knowledgebase.

This started happening again yesterday; I can;t think what triggered it.  I've been through every step in the knowledgebase entry but can not solve the problem. I have a workstation setup of Accpac 5.5A with Office 2007.

Note: when I tried to add the addin manually, it copied it to a local folder. This made no difference.

I reinstalled office and Accpac workstation setup. I deleted all trusted locations from Excel. I kept macro security to low (ie, no security). FR works again.