export part error

[verfet]

Hi,

I'm trying to export the results of a part(Visualization module), into an .stp format. When i select File-Export-Part i had a message 'This function requires a part to be displayed in the current viewport', i have only one viewport as i have only one part and no plots. Also,at the menu 'Viewport' the only one viewport is checked indicating that i am in the current viewport.

I tried exporting as an assembly (.sat) or as a sketch(.stp).If i try again to export as a part(.stp) i had to choose where to save the part and choose the format , but when i choose ok ,Abaqus shuts down. Is it a bug?

Any help?

Thanks in advance