When Product Designer is run its icon will appear on the taskbar but it cannot be restored to a usable window.
This is caused when Product Designer is closed while it is minimized. This can occur while minimizing Product Designer and then right-clicking on its icon to close it. It can also occur if Windows is shut down while Product Designer is running but minimized.
Once Product Designer has been closed while minimized you will need to delete a setting in the Windows Registry to allow Product Designer to open normally.
WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows to correct them. Solatech cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.
There is currently no resolution to this problem, however you can prevent it by closing Product Designer while it's open.
Solatech has confirmed this to be a problem with the software listed at the end of this article. As more information becomes available this article will be updated.