It's me again with my bug. In  an image 3.7alpha 5423 'save' and 'load' project from a 
file works correctly but if the same project was saved on a server, the project could 
not be loaded correctly (GIF picture is as in low resolution and a message 'could not 
resolve the server maned: xxx').
xxx is the name of the file .pr with a number  for example : file1.02 if the name of the 
file is file.02.pr
I understand that the change of name is probably the problem.
jean-Marie Zajac