Festivalnut is spot on. No-one can help you unless you provide a clear description of the problem, and the steps leading up to the problem.

Unless you'd like to post your n900 to one of the experts here who could look at it for you?

If you go to a doctor and say "I'm ill" he'll ask for a bit more detail before deciding whether to listen to your chest, check your knees for creaking or stick a probe up your @rse. If you want a tech-doctor to diagnose your n900 problems, you need to describe the symptoms. Try: "When I do this, that happens." You don't need to be technical about it.

I'm sorry the n900 has been a horrid experience for you, but most people here have had very good use out of the device. The fact that you have had problems in several devices suggests either serious network issues or something in your particular use-case is causing trouble. Without more detail, we can't say any more than that.

BTW, we have rules here against being needlessly rude, insulting or troublesome to each other. You might want to check them out.