this is available to validate in the nightly build dated: 10/11/12 8:44:00 AM
Tested using the pdi 4.4 installer build on 10/11/2012.
The big data tab has two rows of icons and there is no extra scroll bar. see attached screen shot. Tested this in windows.
Tested this issue using the pdi 4.4 installer build on 10/11/2012.
When there are two rows the scroll bar does not show up.
Tested this in windows and UBuntu 12 and this issue is resolved.