If IMatch only shows icons for RAW files, or the thumbnails are very small, you most likely do not have installed a WIC codec for the RAW format you are using.
Please see the
WIC and Codec blog entry at the photools.com web site for more information and download links.
WIC DiagnosticsTo determine if a WIC codec is installed and used, please do this:
1. Select one of the problem files in a File Window
2. Run the WIC diagnostics from Help > Support > WIC Diagnostics
The result shows you a list of all installed codecs on your system. At the end of the listing you'll find the results for the selected file. This will tell you if a WIC codec or the file was found, and if it worked.
After Installing WIC CodecsIf you have installed WIC codecs for your file format
after you have added the files to your database, you need to rescan the files with the
force update option. IMatch does not re-index files which have not been modified. And you don't have modified files, just installed a new WIC codec.
To rescan files in order to use the now installed codec, do this:
1. Select the files you want to rescan in a File Window, or select one or more folders in the Media & Folders View
2. Press <Shift>+<Ctrl>+<F5> to open the extended rescan dialog. Alternatively, hold down <Ctrl> while selecting the
Rescan command from the context menu
3. In the dialog, choose
Force UpdateIMatch will now rescan the files, re-created thumbnails and cache images as needed using the installed WIC codec.