I tried what you said, but still its there..

Qt Code:
  1. QHeaderView::section {
  2. background-color: qlineargradient(spread:reflect, x1:0.500318, y1:1, x2:0.512, y2:0.211, stop:0.0795455 rgba(164, 221, 255, 234), stop:1 rgba(234, 254, 255, 227));
  3. border: 1px solid rgb(188,188,191);
  4. }
  5.  
  6.  
  7. gridline-color: rgb(188, 188, 188);
  8. background-color: rgba(255, 255, 255,0);
  9. /*alternate-background-color: rgba(241, 241, 241,190);*/
  10. }
  11.  
  12. QTableWidget::item::selected{
  13. background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(229, 255, 189, 245), stop:1 rgba(229, 255, 189, 255));
  14. selection-color:black;
  15. }
  16.  
  17. /*=====================================================*/
  18.  
  19. background-color: rgb(255, 255, 255);
  20. }
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can it be because of QHeaderView::section in the style sheet...
but as i said before, i tried without style sheet..but still its there..