Long story short, I tried to install a SATA dvd drive (which kept the system from booting at all) and when I put everything back to where it started, my USB support is gone. I tried "fdisk -l" but it told me "Unable to open l-." I tried "lsusb", but it told me "unable to initialize libusb: -99." I can't mount usb, sdb, sdb0, sdba or sdb1, it claims "can't find *** in /etc/fstab or /etc/mtab." I should tell you that it's a very new install of only 4 days old, fully updated as of a few minutes ago. I don't know why installing a SATA drive would cause the whole system to go haywire on me, but it seems to have. I can't get it to even recognize any of my USB ports now.