I've been using the BB Dimension Today Plus theme that has the Today screen and Zen icons available by a scroll to the right:

Today Plus Theme Review and Download

I just upgraded to os 4.5.0.52 on my 8300. If I perform a battery pull or soft reboot, the icon arrangements I’ve made on the home screen (that drive the Zen menu) are lost, and the icons revert back to the original arrangement. Is this a compatibility issue because this theme was designed for 4.2 or lower os? Is there a way to correct this? Thanks.

This has been discussed many times on the forum.

http://www.blackberryforums.com/beta...mes-fixed.html

Thanks. My apologies. I find the search engines on forums to be sometimes difficult to use. I'm not sure if/how to use boolean logic to look up a phrase.

It's probably mentioned in almost every 4.5 OS thread in the Beta You Than Me forum.