Ok I have checked the event log and this is what came up in the ACEEvent log
0000000050: 2011-08-31 21:08:25:335 Exception <Saving Xml Document>: Access to the path 'C:\ProgramData\ATI\ACE\Profiles.xml' is denied.
Exception Called by: ATI.ACE.APM.Server.XmlDocumentSaver::SaverWorker
Not sure what it means, but seeing ATI and ACE suggests something with the video driver as I have a Radeon card. Thanks for any help you can provide Tailwind.