Blue Screen Related To Folder Redirection

Well this is my first post on the forum & immedially it is a blue screen post. Not entirely unexplainable since I was able to reproduce it and solve it!

Issue: Bluescreen when accessing redirected "my documents" folder.

Involved machines:

Windows 2008 server environment. The fileserver runs on a perc 5/i in RAID 5. The disc is configured as GPT as it is larger then 2 TB. Folder redirection is configured by a GPO towards the fileserver. Domain is running on windows 2008 functional level.

Test PC running Windows 7.

Cause & solution:

Well, basicly I could reproduce the bluescreen occuring each time I worked with files. I configured the initial rights on the fileserver according to this guide: How To Configure Folder Redirection (I keep forgetting what rights are needed "DUH")

What did happen to cause this issue? Well, I wanted to place data in the redirected folders to play around with. As I was currently working on the FS at that time I wanted to do it directly. Access was denied on the "my documents" of the test folder. So I took ownership... Apperantly the folders created by "folder redirection" differ quite a bit from 2003. I lost all rights on the folder. No biggie I figured, I just add the user to the ACL with full rights.

This is the moment I started to get the bluescreens on the Windows 7 test machine. And after a while it dawned upon me that the change of rights must have been the cause of it!

I disabled redirection of the my docs in the GPO, made sure the client machine was logged off, renamed the folder by adding .old, enabled the redirection again and logged in on the client machine.

I understand that taking ownership of the folder f*cked up the rights & windows needs these rights to work properly. It just seems that getting a bluescreen is a bit over the top.