Stardock Central AppLocationX registry key changes on shutdown

When I shutdown Stardock Central, the HKEY_CURRENT_USER/Software/Stardock/StardockCentral/AppLocationX value changes to an extremely high value (e.g. 0x00000935, which is 2357).  In practical terms, when I restart the app, StardockCentral is several dozen desktops away.  Windows key + arrow keys don't seem to grab the window.

Dxdiag dump is at http://pastebin.com/qyCk2FbK

I'm running two monitors: the laptop's built-in display, and an external HP 2408w (1920x1200) via...