Using the latest 7.01 beta, Windows Vista 32bit, Delphi2007 Pro and Delphi2010 Pro, all updates applied.
After I installed the most recent version, the scrollbar of ImageENView (a third party component) is broken. The scrollbar behaves erratic; scrolling a loaded image into view all the time. The ImageENView uses the 'Edit' skin in the ThirdPartyList. Please take a look at this, as this bugs breaks my main application.
I just reverted back to 6.68 and the bug is still there. Definitely caused by AlphaControls, since the bug disappears as soon as I turn skinning off. The scrollbars (including the loaded image) always return to the 0,0 position after being moved with the mouse.
Please find attached a very simple test project. To reproduce the error, load an image into the ImageENVect and click with the mouse on the image until the scrollbars appear. Move either scrollbar with the mouse and watch how they behave. When you slide them to the left or right, the scrollbar buttons always return to their previous position. Clicking on the scrollbar itself shows the same behavior. If you disable skinning, the error disappears.