Cimatron E Crashing Laptop

Hi.
Does anyone have any suggestions as to why my laptop keeps crashing with Cimatron E 10? I have had the laptop specs checked and okayed for Cimatron. There is 50 GB free space on my hard drive. The latest updates for Cimatron are installed. The latest Windows 7 updates are installed. I have used CCleanup to do all the registary clean ups etc. I have checked disc for errors and defraged etc.
Thanks.

tell how are you running cimatron with what? do you have the k-code- or crack?

It is a legal version of Cimatron. I run the program with a dongle with the licences on it. 'Cimatron Help' have said it is not a problem with the program, but an issue on my machine.