Memory allocation failures

Question

I have written a helper server DLL (int C++ 7.0) that internally does dynamic memory allocation via new. It runs great on my development server [2000], but crashes (new throws an exception) on my production server [2003 Advanced]. I am not talking about much memory. I am tring to get a total of about 50K [in up to twelve calls]. It crashes on the production server at about 10K. Any help greatly appreciated.