Bandwidth Usage Doesn't show the real usage

[sysmanz]

Hello,
My WHM Bandwidth Usage does not work well, its show the 0 for most of domains or the very low megs for some of them which their owner are 100 % sure its invalid (since they compare BW usage to previous months) !!!
Analog,Awstats and Webalizer are disabled from many times ago.
"Stats and logs" under Tweak Settings set in default value.
The server & WHM info : WHM 11.30.1 (build 4) CENTOS 5.6 x86_64
Bandwidth Processing Frequency set to check every 2 hours.

Here is the total BW usage for few month :
This month : 4.46 Gig
June : 7.32 Gig
May : 19.49 Gig
Apr : 1095.26 Gig


I don't have any doubt the usage should be more than these amounts.
One of the websites with more than 1000 active users and more than 25000 view daily used 45.68 Meg BW !
Its too low.

Any idea how to fix this ?!

[sysmanz]

Nobody have a solution for that ?!
I'm not newbie and used cpanel for years... So I'm 100 % sure there is a problem with server...

[Infopro]

You might want to put in a ticket to cPanel. There's a link at top of the forums titled Bugs, you can use for that.