I have noticed a defitiency with objectdock plus when running on Vista with UAC enabled. I have not seen this documented elsewhere, applogies if this is already a known issue.
You cannot get thumbnails / previews of programs that need uac autherisation before they are run on the objectdock bar. All you get is just an program icon. But with windows standard taskbar with previews enabled, you do get previews of these programs.
Stardock central is a case in point. It ask for uac / administrator autherisation before it runs, but only shows an icon when running on objectdock. You can see a thumbnail if you mouse over the program on the windows taskbar.
This happens even if you select 'run as administrator' when starting objectdock.
I know uac is not a popular thing at the moment, but it is there. I also know the simple answer is to turn off uac, but this is just a workaround. Hopefully this issue will be resolved by the developers in future versions...