I have a WD 250gb external USB hard drive that has about 70 gigs of stuff on it and I've had it for about a year. I haven't used it in a few months and now it wont mount. I used disk utility and it wont allow me to verify or repair disk permissions, they are grayed out. I used Disk Warrior and rebuilt the directory and it says the drive is NOT visible on the desktop, but all the files are still there so I know this isn't a case of the drive being erased or failing. I have had mounting problems on other external drives before but this time it's really annoying. Does anyone know anything I can do to get this thing mounted? Thanks much!