Error Message: A crash occured on (date) at (time) while running "Applications": Memorymgr.c, Line:5346, Chunk under-locked

Question

I keep getting the following warning:
A crash occured on (date) at (time) while running "Applications": Memorymgr.c, Line:5346, Chunk under-locked
What is causing this? It usually happens overnight while I'm not using my phone... so the first time I touch it in the morning it shuts off and resets. The problem started occuring after Sprint switched from "On Demand" to "Pocket Express". I had no idea of the switch, so when I clicked on it the phone automatically updated to the new application. Since then, my phone has been a mess. I deleted the application, performed a hard reset and downloaded it on my phone again.. but still there's problems. This morning, I deleted the "Pocket Express" for good. I figured it wasn't worth it if it's causing all these problems.
Help... please. I'm a novice, so please make sure the solution is something I can understand. Also, do I need to go through my Palm Desktop/Hot Sync program on my computer and delet files too?
Thank you in advance.
Phone: Treo 755p
Carrier: Sprint
P.S. I also just installed the Sprint Treo software update: Treo755p-1.07-SPNT
It cleaned things up... but not for long.
Post relates to: Treo 755p (Sprint)

Answer 1

After a hard reset and after you delete the program on the device, you will need to rename the backup folder in your username folder on the PC. The backup folder contains all 3rd party programs and settings for your device. When you sync, the backup folder is reloaded onto your device and will bring back the 3rd party programs.
Follow the instructions below for the procedure I described.
Looks like you may need to hard reset and rename your backup folder if you go
to http://www.palm.com/cgi-bin/cso_kbURL.cgi?ID=887 and follow the
directions to do a hard reset. Next before you hotsync your data back over
you will need to rename your backup folder to do that go here
XP
C:\program files\palm or palm one\[hotsync username]\ and rename your backup
folder to backup.old
Vista
Start-->documents\Palm OS Desktop\[hotsync username]\ and rename your backup
folder to backup.old
Then hotsync to your current hotsync name and all your contacts, calendar,
tasks, and memos will come back over.
Show file extensions for XP or Vista
XP
If you can not view file extensions on your PC I would like you to open a
folder go to Tools-->Folder Options--> View (tab) and under show hidden
files and folders uncheck hide file extensions for known file types.
Vista
Open control Panel go to Folder Options--> View (tab) and under show hidden
files and folders uncheck hide file extensions for known file types.Find your username folder
Post relates to: Palm i705