I just built a new system with an Asus P5K-E motherboard and am having trouble connecting my WD MyBook Studio 500gb by Esata. Randomly Windows XP will see the hard drive and other times it wont. When it does see it, when I try to open a file on the HD I get the Windows Delayed Write failure. I fixed that error by stoping the disk cache. But now randomly it just disconnects for no reason and I have to turn off the drive and unplug it and hope for the computer to recognize it again. I have all the updated ASUS drivers for the Jmicron JMB36X controller (1.17.15.0). My BIOS is updated with the newest version also. Any suggestions...? Thanks guys.