Hello, Thanks to all who responded to my question about the WD-Caviar HD that would not be recogznized as a single drive but worked fine as slave. Removing the jumper altogether (not setting it as Master) solved the problem. Best Wishes, Bruce Bruce Boschek - Giessen, Germany PCBUILD maintains many useful files for download on our web site - visit our download page at: http://nospin.com/pc/files.html