Did you reboot your Kindle? It may also be because my randomization 'code' sucks. A lot.
Check your linkss/screensavers folder. If it's using the randomization code, your screensavers should have a random two to four digits prefix to them. (ie. 245_my_screensaver.png instead of my_screensaver.png).
But since that's done only once, at boot, you'll have to do a full reboot. The framework restart of the autoreboot feature isn't enough (that'll just reset the counter, and show you your first ss).