For some odd reason, the back light is no longer on when at the main screen (the screen that you can set custom text and e-mail/IM indicator).
At first I thought it was my USB ports, as I went from plugging from hub (where it worked) to back of computer. I plugged the unit in several ports and back to the hub and same problem occurs. Ever so often, when plugging in, it'll be blank but after clicking on disconnect and reconnect, it works and goes to main screen (but still without back light).
However, the back light DOES turn on for a couple of seconds but when it hits the main screen, it goes out. This is with a new install of Windows XP Sp2 32bit along with a new install of Pertelian driver/software.
Gosh, I have to say, using the Pertelian is addicting, it's a fun little toy at first but it grows on you pretty quick when you realized how convenient the little thing is.
