HP Director for HP 4570c scanner

I have an HP 4570c scanner that I moved from one computer to install
on another. Scanner and software was working fine on th old computer.
When I installed it on the new computer and try to use HP Director I
keep getting this message.

"An error occured communicating with the scanning device.Please ensure
the scanning device is connected properly and try again."

I can scan a document or picture using the HP Photo and Imaging tool
but the client wants the HP Director. I have installed the HP
Solution Centre and I keep getting the same error message. I do not
have IE7 installed. I have removed and uninstalled all the HP scanning
software and reinstalled but still running into the same issue.

I'm puzzled why I can connect and scan using the HP Photo and Imaging
but receive an error when I try to use the HP Director.

Any help appreciated.

Thanks,
Steve