Dropdown issue in the browser

Hi All, i have been used the dropdown in the AW 2.0 grid, but dropdown design is not support for the safari.Best post would be appreciatable.

Could you please explain the issue in more details?

I am using AW2.5, here my page have the grid with scrolling option. In the grid i used dropdown. when i click the dropdown,popup will be populate with correct position without scrolling the grid. Now i am scrolling the grid, now the middle dropdown column would come first.When i click the dropdown, the popup displayed in middle but dropdown placed in first. This issue will happend in Opera and Safari browsers.