Hi All

I am having problems getting my changes saved to an MS Project 2010 Professional file on our Sharepoint site.
I can check the file out, make changes and save, and check back in for Sharepoint to show that I was the last to modify it, BUT when I open the file again, the changes aren't there. I am using Project Pro.
There are at least two others who make changes to that file, but they don't have to do all that and their changes save just fine. They're using Project Standard and I am using Pro .

Any Pointers why this issue happens only for me?