unable to edit photos

["Mark Petersen" <petersenmde gmail com>]

I am see the following error when I try to edit a photo using the Convert to Sepia or Auto Adjust Colors buttons.

Received exception "libfspot". Unable to save photo xxx.jpg

Also when I try to use the Adjust Photo Colors the dialog box opens but I cannot use the slider bars or see the histogram.

All other functions work.

I am using version 0.4.2 on debian testing.

Thanks

Mark