When I use DSolve with Mathematica version 7 for an IVP, it doesn't generate the answer. However, my professor has the same version and it works just fine for him (I sent him the my file and it works fine on his computer).

I have attached the Mathematica file. Is there a preference setting that may need to be changed? If so, could someone instruct me on what to do?

Thanks.

Unfortunately, MHF won't let me upload the .nb fle.

Attachment 20044