Hi all

I've uninstalled my previous version of Adobe Reader (8.1.2 I think) and tried to install version 9.
It gets so far and then I get a message that Adobe installer is unable to write to registry key "\AcroExch.FDFDoc\shell\read\command"

I've CCleaner to ensure no lingering (bits) of old installations and it's coming up clear.

Anyone any ideas on how to get round this?