excel 2007 file locking
 

Hi All

First post to this NG so apologies if this has been dealt with before

Have installed windows vista and office 2007 on 2 machines. I have tried to
export an access report from another application into excel on each
When excel opens the file on one of the machines there is a prompt which
says the file is 'locked by another user' I select either read only or
notify and the workbook opens in read only format.
I cannot delete the file or the temp file associated with it until I have
rebooted the machine

On the other machine the problem does not arise

I have used the same Vista and office disks for each machine (with different
key codes as I have multiple copy licenses)

Both are clean installs on formatted hard drives

Both are with the administrator as the only user

I have user account notification switched off on both

I have searched the web and found several references to the problem but no
solutions

any help really appreciated

Tony