Strange behaviour with homefolders

[manamaga2512]

Hi all, our end clients are running Windows 7, servers are server 2008R2. Screenshot of users Profile settings below. I have denied administrator read permissions on desktop.ini file in each users home folder in an attempt to fix this, but after more digging today I'm beginning to think that this could be a machine based issue. This is affecting a number of students (number not confirmed) but I have been using one particular students account for the purposes of testing my so called fixes, but I've come to a dead end and don't know where to look now. This student, when logging onto a particular PC in an IT Suite gets this error when trying to access his home folder:

 

 

However, if he logs onto the computer next to him, or in another suite (two other PC's tested so far) he can access his home folder. I have noticed however that on the PC that gives him the error, There is no volume shown under drive name:

 

 

Sorry if this is about as clear as mud but it makes sense in my head! LOL

 

Many thanks for any advice.