Guest : Windows XP Pro SP3, guest additions 2.0, VT-x disabled
Host : Linux Ubuntu 8.04.1 x64
Virtualbox : 2.0 amd64
When trying to access a shared folder, guest network and hard drive suddenly works pretty hard while explorer window seems to be frozen, waiting for a answer from the server.
Strangely, the shared folder icon shows no activity while it should, and network and hard drives icon shows a lot of activity, but they should be working! It takes 18 seconds before explorer.exe is actually able to list the shared folder content. After this, everything works correctly until Windows XP is rebooted.
This bug appeared in guest additions 1.6.0, and is still not fixed in guest additions 2.0. guest additions 1.5.6 are fine and don't have this problem.