Image Previews not shown (JPG, GIF, ICO, etc)

After applying any icon package (IconPackager 3.99.146) the image preview functionallity stops working... whenever I access a folder with JPG, GIF, MPG, PDF or ICO Files (or any file that does a preview of it's contents in windows vista) , the preview is not generated any more Instead, the icon assigned at the icon package is displayed.

This is really a problem considering ICO files, icons are no longer shown, and the icon for IconPackager (the associated default editor for these files) is shown. This is terrible.

The only way I fould to solve this is resseting the Vista Default Icons (which yields an error -as mentioned in a recent post in this forum).

This thing simply yields IconPackager completely useless!