Descriptive Problem Summary:
When doing anything in the interface editor, the window will flicker like mad. Including adding controls, resizing controls, dragging controls or even clicking on the interface.

Numbered Steps to Reproduce Problem:
I assume it requires Windows 7 64bit of some kind.
Create a new project.
Add an interface.dmf
Add a control.
Do something with it (resize, drag etc).

Expected Results:
Less (preferably none) flicking.

Actual Results:
Massive flickering, making it incredibly difficult to use the interface editor.

Does the problem occur:
Every time: Yes.
On other computers: Windows Vista/XP seemed to work fine. But they're not 64bit.

When does the problem NOT occur?
When using a different operating system.

Workarounds:
The massive flickering can be controlled if you run Dream Maker Windows XP Compatibility mode, making it more tolerable but still very noticeable. (Dragging controls only flickers the grid dots and not the actual window. But still clicking on the window or controls will flicker the entire window.)

I have a spare legitimate activation code for Windows 7 Ultimate 32/64Bit if you guys don't already have Windows 7 to develop on.