This is more of a bug report than a question (I've not been able to find a
standard place to report bugs in Office 2007, the Connect site is for
developer products such as Visual Studio etc).

3d line charts which work perfectly well on a pc with Excel 2003 cause Excel
2007 to hang when opened on my Vista pc with Excel 2007.

I hope this is something which can be fixed when Service Pack 1 is released
for Office 2007, as it is a very useful chart feature which we (and our
clients) use a lot in one area of our work, and it may prevent our clients
from migrating from Office 2003 to Office 2007.