Hello everybody, I have encountered a serious problem with Parallels v3, which is much more serious, more serious than running 3D games or detecting USB devices. I put the macbook pro to sleep with windows XP running on Parallels. I have done it many time before in v2.5 without a single issue. This time, when I woke the computer from sleep, Parallels froze and after a few minutes the entire computer froze. I kept it running the entire night and even in the morning it was frozen. So I had to hard restart the machine. After restarting when I started Windows, to my astonishment, whatever modifications I had done to the virtual HD in the last session was gone!! This includes all programs installed, any files created or modified. the hard disk was back to the state it was in before the last restart. This is has occured twice to me, so the problem is reproducible. After it occured for the first time, I uninstalled Parallels following the instructions in this forum and reinstalled everything, but the problem repeated. So I would warn everyone to backup their data as frequently as possible, because with this new version, there is no guarantee with data security. I don't know if this problem has to do something with the snapshot feature?? Why did Parallels release a software that is supposed to be in an early beta stage. Above all, why shouldn't we be able to revert back to the previous stable version (hard drive format changed in the new version). I had to cancel my seminar in my workplace because i lost my work (the PowerPoint presentation).