I have Acronis 9.0 on my Toshiba laptop with Windows XP Pro. I use Acronis backing up the files to an external hard drive using firewire (6 pin to 4 pin). I use file splitting (4 GB files). The external hard drive is a 200 GB Seagate Barracuda-ATA. Acronis backs up to the external drive. When the process is completed, I can see the files that were created on the external hard drive. The problem is when I use windows "safely remove hardware" feature. I get a message: "Windows-Corrupt File. The file or directory E:\$Secure is corrupt and unreadable. Please run the chkdsk utility". The external drive is then unaccessible. Sometimes, running "chkdsk /f e:" does in fact get the drive back. Sometimes it does not. Obviously, I do not want access to my recovery back up to be unreliable and undependable. If I back up to the computers hard drive, I do not get this error message. Only when backing up to the external drive. Has anyone else seen this problem? I have reformatted the drive and started from scratch, but the problem still arises.