I found this some long time ago on the Microsoft web site - maybe it will
help you.
Missing detail columns in explorer This article describes how to set columns
in folders to use a minimal amount of space.
MORE INFORMATION
================
When you select Details view for a folder, a header bar appears with these
columns: Name, Type, Size, and Modified. You can change the width of the
columns
by dragging the vertical bars located between the column names. To see as
much
information as possible, you can set these columns to use a minimal amount
of
space. To do so, follow these steps:
1. Open a folder, and then click Details on the View menu.
2. If you are using Windows Explorer, click in the pane (on the right) that
displays the folder contents.
3. Press CTRL+PLUS SIGN (make sure to use the PLUS SIGN key on the numeric
keypad).
Alternate Method
----------------
WARNING: Using Registry Editor incorrectly can cause serious problems that
may
require you to reinstall your operating system. Microsoft cannot guarantee
that
problems resulting from the incorrect use of Registry Editor can be solved.
Use
Registry Editor at your own risk.
For information about how to edit the registry, view the "Changing Keys and
Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit it.
If
you are running Windows NT, you should also update your Emergency Repair
Disk
(ERD).
If the steps listed above do not work, try the following steps:
1. Start Registry Editor (Regedit.exe).
2. Locate the following registry key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
3. Delete the DirectoryColsX binary value.
4. Quit Registry Editor.
