Any Minolta/Sony users using UFRaw and GIMP?

I thought I would post this to the digital group to see if there were any
Minolta or Sony users who used the UFRaw converter software with their raw
image files. I have been having serious problems and wanted to see if this
was observed by others. Here is my story.

Ubuntu 13.10 system running on an Asus U56E system
UFRaw ver. 0.19.2
Dcraw ver. 9.19.1
GIMP ver. 2.8.6
Darktable ver. 1.2.3
Shotwell ver. 0.15.0

When attempting to load Minolta (mrw) and Sony (arw) raw image files into
GIMP, the UFRaw plug-in is not properly processing them. The following
webpage has images which demonstrate the problem:

http://smallthoughts.com/photos/misc/GIMP/index.html

The raw files are being imported with distorted color, exposure and
contrast. However, as the additional images show, other programs such as
Darktable and Shotwell and the Minolta/Sony editing programs (on Windows)
are importing and displaying these raw files properly.

Has anyone else been experiencing similar problems with their raw files of
any type?

Regards,
--
Jeff