WM cahttp://www.micrnnot open attachments from Word, Excel,

Hi,I have searched and read through the "cannot open attachment" issues already here (to date), I would like to give this a "new try".I have a brand new HP Pavillion DV9225 laptop with Windows Vista Ultimate, preinstalled.My issue is, with Windows Mail, in a email message, a attachment that is a Word doc (.doc), a Excel spreadsheet (.xls), or a Powerpoint file (.ppt) cannot be successfully opened by its associated Office task.I open up the email message, double click the attachment (let's say "fubar.xls") to open, the appropriate/correct Office task is executed to open the file, but I get this error panel:"Windows cannot find 'C:\Users\myuserid\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\UYSODHL1\fubar.xls'. Make sure you typed the name correctly, and then try again."Observations: 1) Norton Internet Security suite preinstalled and activated. Deactivated virus scanning for incoming email. No change, still have issue.2) I can successfully save the attachment to a specified folder, and view/open it. But this is only a workaraound, I still am interested in the solution.3) If I rightclick on C:\Program Files\Windows Mail\WinMail.exe, and select "Run As Administrator", then Windows Mail task runs *and then I CAN (!!!) open attachments that are .doc, .xls, or .ppt !!!It appears to me that Windows Mail by default does not have "enough" permission to save the attachment file to a temporary file in the path listed in the error message above. Therefore, the Office task cannot find it when it attempts to open it.4) If I rightclick on C:\Program Files\Windows Mail\WinMail.exe, select "Properties", "Compatibility", I cannot permantly set the task to "Run As Administrator", which might have been a fix, as this option is "dimmed".So given all this info, might there be a solution to this issue? Any and all help appreciated!Thanks, Gary K