NTFS permission did not apply to all subfolders, why?

This is a Windows 2008 x86 server,  patched up to date.
A user would like to have Read permission to a folder which contains 4 subfolders.  I noticed that the permission was only applied successfully on one subfolder, not the other 3. On the other 3 folders, his account did not even show up in the account list.
Here is what I have done-
Right click on the folder | Security | Edit | Add | add his account and leave the default permissions as is (Read&Execute, List Folder Contents, Read) | Apply.
Under this folder, there are 4 subfolders only, no files. Only one subfolder inherited the permission. His account even did not show up in the account list on the other folders

Please help!

Thank you!
Who is Participating?
NVITConnect With a Mentor Commented:
For the folders that didn't inherit, under Permissions, is the "Include inheritable permissions..." checkbox set?
techcityAuthor Commented:
That's it!
Thanks for the update, techcity. Glad it works now.
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