Can't move or explode?

Hey.

I have a problem with Edrawings. After saving an assemply, I (or anyone els in the company) can't move parts around ind Edrawings......

If I open a part or assembly, saved by my colleague, everything is fin... but if I open the file, and saves it, I can't move things again!

What the hell is wrong??

Cheers.

SolidworksEdrawings