Reg:Blur lines are coming while scrolling in ListGrid

Hi,

Please find the below video:

http://www.screencast.com/users/VijayBhaskar511/folders/Default/media/cafe50db-fca0-4298-8460-b3b42ba34493

When we have more fields in the ListGrid and when we try to scroll we are getting blur lines. Please have a look on the video for more information.

We have checked in the examples as well. We are getting when we have more columns in the grid, Please suggest me something to fix this issue.

Version: Isomorphic SmartClient/SmartGWT Framework (v9.0p_2014-01-14/PowerEdition Deployment 2014-01-14)

Browser: IE9

Thanks in Advance