Windows thumbnail and preview colors

Hi!

Does anyone know what colorprofile CorelDraw X6 uses to create previews of its documents in windows 7?

We have two machines both running win7, CorelDraw X6 with the same colorprofile settings. But when saving the same document who has embedded profiles (one for RGB and one for CMYK) the preview looks different depending on which machine saved the document. This would usually not mather since the color inside the document i correct once you open it, but this time we sent the document with the wrong preview colors to a printer and they managed to get the preview color for the final print.

So does anyone know which colorprofile determines the preview color?

Here a sample. This is the same document saved "Original" from machine1 who shows wrong colors on the thumbnail and preview. And the same document saved from machine2 "SaveAs" who shows correct colors both on the thumbnail and preview...

Reg.
C-J