Yeasterday i made a lot of 3D graphic, but when opening the notebook today, some of them are just gone?!
The beep message:
"There appears to be an error in the file named below. You should close it without saving, then check the "Parse and load entire notebook into memory upon opening" checkbox in the Notebook Options dialog. File name: C:\Users\Søren\Desktop\tema.nb."
Where do I find that option?
Edit: I got Mathematica 7 for Students