I just received some prints from MPIX.  I worked on all the
files in PS before uploading them.  I adjusted color and
flattened layers and converted to sRGB.  I allowed MPIX to
color manage, as per their recommendation.

All the pictures came back with comparatively soft and
slightly washed out blues (sky etc.).

Do people have MPIX color manage or do you check the "do not
color manage" box?

TIA

Louise