Rebecca Foote You might attempt the following solutions to this problem:

1. Check that the files you're attempting to open are in a MorphoJ-compatible format. MorphoJ only supports a few file types, notably ".tps" and ".pnt".

2. Check that the files are in a directory that MorphoJ can access. If the files are stored on a network disk, be sure you have the required rights to access it.

3. Try opening the files from a new place, such as a different folder or computer. This might help you decide whether the problem is with the files or with MorphoJ.

4. Check for software updates to ensure MorphoJ is up to date.

If none of these alternatives work, you may need to contact the program creators for help. They may have further information and suggestions for fixing the problem you're having.