Problem with simulation of different computers

Hi everybody,

i have a problem while simulating the same model, with the same matlab version (R2013a) on different computers (both with Windows 7, 64-bits). The results of the simulation on these two different computers are different. How can it be? I have researched on interenet and found sth with 32-bits and 64-bits problem. But obviously, it is not the case here because I have windows 7 64-bits on both computers.

Has anybody a guess or an explanation to this problem? Have you got the same problem like mine before?

Thanks in advance for your feedbacks. Regards.