There is nothing wrong with the stock dxjpe. It must be something you have installed after flash that is killing it.  It's usually some taskiller app which is the problem.

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Added on July 11, 2011, 12:34 pm
I'm using dip's rom and kernel at the moment and it's good. The installation steps are on his thread's first page, at the bottom. I'm pasting it below:
Installation

(before you install make a backup of data titanium).

Standart - JQ1/ZUJP8/DXJPD/DXJPE
Custom rom - example overcome

0. (Backup app/data - titanium)

1. Install standart firmware JQ1 or ZUJP8 or DXJPD or DXJPE (here http://www.samfirmware.com/WEBPROTECT-p1000.htm)

2. Install my kernel http://forum.xda-developers.com/show...62&postcount=2 for root and ClockworkMod Recovery.

3. Install my custom firmware (GT-P1000_DXJPE_by_DiP7_v2.2.3)
(ClockworkMod Recovery -> install zip from sdcard -> choose zip from sdcard).
Since you're already on stock DXJPD, use odin to flash dip's kernel . Download and use the TAR version ie click the "PDA" section and select the Tar file. And click Start.
To flash the rom, go into recovery mode etc.

If you don't know how to use odin app and recovery to flash kernels/roms ,you'll need to go to youtube to find some video tutorial.

If you are on samsung stock dxjpe  you should flash dip7's kernel. It comes with chainfire's cfroot and chainfire's ext4 app. This means it will be rooted once you flash dip's kernel. You can then run the ext4 app to convert (if you wish)

Yr tab must be rooted and need to have unsigned bootloader. If yr bootloader not yet unsigned , you will unable to flash custom rom and not bricked yr tab

You are already in Gingerbread no need bootloader patch 'DO NOT PATCH BOOTLOADER IN GINGERBREAD'

Just flash via Odin 3 v1.7.

Good luck.

Agree! !!! anyone else facing the same issue.
its very obvious when u go to gallery. the photos albums loads bit by bit. sick!
is there any one click way to root it?
thanks