I suddenly can not access all the files that I just saved under my documents folder from my laptop (windows 7). I have a domain with windows 2003 servers, and on my laptop (Windows 7), I have two users: userA in the domain, but the userB not. userA has roaming folder "My Documents" located on a file server. and userB has "Documents" folder on my laptop. I use userA to work with domain, and use userB for some personal work. If I access any of my files under "My Documents" from any of domain servers or workstations, I can access them without any issue. (BTW, userA is a domain Administrator with FULL CONTROL permission on all the folders on the file server.) But when I try to use userA from my windows 7 laptop to open a file that userA just created under "My Documents", userA gets a message saying "Access denied. Contact your administrator.". Same to userB, userB can create a new file under "Documents" folder, but can not access right after the file been created. Right a few days ago, everything was working normally. and I don't remember in this few days I've ever done any windows updates yet. Could this be a virus problem? I've used windows security essiential 2011 latest version full scaned the laptop by which killed one thing called TrojanDownloader:Win32/Delf" Any solution I can take to get my files reaccessable? Any input would be greatly appreciated.

Thanks Arthur. I do not think the file permission settings have any issue though. The output of the command is posting below. Any suggestions? Thanks for you help. BUILTIN\Administrators:(OI)(CI)(ID)F CREATOR OWNER:(OI)(CI)(IO)(ID)F MY DOMAIN\Domain Admins:(OI)(CI)(ID)F NT AUTHORITY\SYSTEM:(OI)(CI)(ID)F

Ok, the issue was caused by expired certificate. Thanks for the help.