Hi, I´ve expanded my disk image as described in the forum. All went well. But while working free disk space ( > 2 GB) shrinked very quickly so at least I was not even able to install a driver on the guest machine :-( Does anybody know this effect? What went wrong? TIA H@ns Specs: MacBook Pro 17" Core 2 Duo, Parallels 2.5 Beta Build 3, Win XP Pro SP 2