file name changed in NTFS system after access it with samba

I have 11.0 on my laptop and access a windows computer with the network folder wizard via a network cable. Yesterday I was working with files (spreadsheet)from the windows computer on my laptop(opensuse11) and today I cannot access these files,or the folders they are in, from both the windows desktop or my linux laptop.

the file name in windows has been changed to a series of numbers and letters (91a9d7cd9) and has been copied to a different place on the c drive if you try access the files in windows you get an error saying file not accessible and if you try access them in opensuse you get the authorization box asking for a username and password but my username and password or root and root password does not allow access to the files.

Any help would be great as this is a production system.