HI,
a few month ago I already submitted this issued, and I have been answered that this kinf=d of issue will be definitely corrected with the 1.8 release...
"We hope to implement a workaround to this problem in the next update to the PixInsight Core application for Windows, which we'll release in a couple of weeks. The final 1.8.0 release, due November ( 2013 ! ), definitely should not have this problem anymore.
Best,
Juan Conejero"
then I got some releases where it was OK for that,
with the last one it's not.
I am expecting a solution within PI
best regards
Dominique