I googled your problem and this is a solution I found....
Give yourself access, in true, Secure, Windows fashion
Start (ORB) > Computer > Right click D:\ > Properties > Security > Edit > Ensure "Everyone" is selected > Check 'Allow' for Full Control on the Permissions for Everyone section (which will select all the others for you) > OK
You are bound to get the Vista user account security pop ups for this - just accept them - then be patient as it scans every file and makes it all nice and accessible
Let us know if this helps...
