SP7 reporting upgrade

Hello,

I've ran into issue when installing SP7. All the VUs upgraded successfully but reporting throws this error every time:

Create software instance [Standard Reports] to virtual unit [VU_REPORTING]: Failed to run method 'postinstal' in 'C:\SAP\BCM\7.0.7.0\Standard Reports\method': Method returned an error: Exit code=-1=0xFFFFFFFF

I'm upgrading from 7.0.6.100 and I've read several topics here describing the problem, but so far none of the suggestions provided were of ony help.

I'm at my wits end here, any idea what can be causing this?

Regards,

Robert