Gabriela,
I haven't faced that problem so far. This really sounds like a bug / installation / software configuration problem, I think probably more like a software configuration problem specific to your environment.
Does this happen everytime, even when you start off with a new app or if you open an existing app that worked before?
I assume you are working with the desktop client, have you tried re-installing the app?
Regards,
Stefan
P.S. And please remove the "answered" flag, I think this might prevent some experts here from looking into this.
