On Thu, 19 Jan 2012 19:27:48 -0500, Barry Bruyea
wrote:

On Thu, 19 Jan 2012 22:10:13 -0000, "Tim Meddick"
wrote:

You could try to repair the file / folder associations for "Folder" and
"Directory" as offered by Doug Knox's website :

http://www.dougknox.com/xp/file_assoc.htm

...click on both the links for "Folder" and "Directory" which will start
downloading the zip-file in both cases, open them and extract their
reg-file contents and double-click on each to import the registry
settings...

Thanks for the suggestion, I'll give it a try.

Tried this, but nothing change. The big mystery for me is that in
folders with many subfolders which in turn have more subfolders
some have the + sign beside them and others don't which, of course, is
the reason they don't open their subfolders.

I'm not sure why the folders continue to be a mystery...
Spill the beans already.