Vista errors

I have installed windows vista.
I have a problem with it.some times i am working on some programing it will give me some error.after some times it has been solved itself.sometimes I work in my office pc on windows xp at that time i didnt get any error.but if I am trying to run on my pc then it shows the error.
please somebody tell me why this type of problem occurs with me?and please give me the solution of this problem.

It will give me "some" error, tells us absolutely nothing. We need to know what error.
Error number and details please.