windows7 rename folder difficulties

When I modify a name of a folder, or I delete a folder or I add a "new folder", I do not have the modification on my screen.

I need to go out of the directory and to come back to see the change.

It did not happen before.
I do not have it on my C:\ disk. (software only)
I have it on my D:\ disk, which is an external harddisk which contains my data or non-software material.

How proceed to correct it ?

Thanks
Pierre MAES