QT tab widget in Linux [how to get rid of small rectangular section??]

[Sidii]

Dear All,

I am having one issue with QT Tab Widget.

!http://s29.postimg.org/rpa550qfr/tab.jpg(rectangular box inside tab text)!

Using CSS, i have already made outline:none.

As seen in the image. There is one selected tab with text as EDIT.
A small rectangular section appears in the selected tab text with blue border.

The problem is that it appears some times only.

I am using Fedora (FC 13)

Kindly help me to get rid of this small rectangular that appears in the selected tab.

Thanks

Siddharth