[Solved] Can't access NTFS partition from WinXp guest

[liquidator87]

Hi, I've installed VBox on Ubuntu 8.04, which has a NTFS partition with full r/w permission...
I want to access to this partition from a WinXp guest, so I did exactly what user manual says, and the vmdk file works good on Linux guests, but from the WinXp guest I get "Disk is not formatted. Want to format it?" when I try to access it...
What am I doing wrong?

Edit: SOLVED using 9.9.2 approach instead of 9.9.1