Hello again.

Sadly my getting rid of AutoCAD 360 has not solved the problem.

Basically, if i am in a DWG and want to open another one, the new drawing opens but then immediately crashes the software and the whole of AutoCad closes. 

The software is fully up to date.

It is a problem with the hardware?  It's a very new laptop bought in early 2014. 

Any help would be hugely appreciated.

Neil