The behavior you describe sounds quite unusual. Can you provide a screenshot of the window you are attempting to move?
If you are describing the process of moving a tab from one Internet Explorer window to another on a separate screen, you do not need to drag the tab to the taskbar icon when transitioning between windows, you can drag the tab directly from the row of tabs on one window to the other.
If you are clicking a button in the window bar that minimizes multiple windows simultaneously, you may be describing a third party window management application (NVIDIA nView, AMD HYDRAVISION).
Brandon
Windows Outreach Team- IT Pro
Windows for IT Pros on TechNet
1. Check the Application log in the Event Viewer for any error codes to investigate.
2. Update your video card with the latest driver update from the manufacturer.
3. Run msconfig and disable OneNote from starting. Then restart Windows.
4. Perform a clean boot. To do this, go to How to perform a clean boot in Windows.