I constantly here people share their experiences with portability, not just in programming, but all several topics of information systems. Regarding java, what i hear is some people reporting failure and some people reporting success and some people reporting both. What does this say? It says java's portability is weak. You dont hear problems with C++ do you? If someone were to say "I blame my instability/glitches on C++", the programming community would tell them to LEARN HOW TO WRITE GOOD CODE! or to go away and try drag & drop programming in Microsoft's world. Anyways, the point is: too many people experience failure with java and it does NOT make up for the success that some have with it.

- Andrew -