[GTALUG] dmesg not reporting the mount point on USB insert

In the past, when I stuck a USB stick in to my computer, I would look at dmesg and see that the device had been assigned a place in /dev. This week, I can see the device's details (Lexar, Sandisk, whatever), but there is no line for where I can address that device. Graphical file managers are also not showing the inserted media (I have tried several different sticks and card readers). I imagine that something changed in Debian that has lead to this, but I can't tell what's missing. ehci is picking up the device insertion, but not giving me a place to use in a mount line. Anyone have any thoughts? Thanks. William