I moved from Ktorrent to Deluge but i might have little problem.

When i limit my download speed i'm getting overdownloaded (i don't know right term). The picture says everything...
If i don't limit my download then i don't loose downloading data.
I don't use "speed limit" plug-in.
Notice how much i've download and how much i waste...
Any suggestions?
PS: You have to love php3-engine (the software that this forum is running) and this is my first work in Gimp

and
confy@rox:~$ uname -a
Linux rox 2.6.22-14-generic #1 SMP Tue Dec 18 05:28:27 UTC 2007 x86_64 GNU/Linux
Ubuntu