I work in a Tech Support call center and have had it with many of the ridiculous calls that come in. There seems to be a total lack of common sense and basic phone etiquette pervading the United States.
This Instructable will help to make your support experience a little less painful for both you and the rep on the other end of the line.
Step 1: Don't try to fix it yourself!
If you are uncomfortable with whatever device you are having issues with, please, for the love of everything holy, DO NOT TRY TO FIX IT! There are people who in most cases are highly trained and intimately familiar with the device or system who are paid to fix it for you. They have had plenty of experience with issues just like yours and usually have a quick and painless fix for it. Tinkering with something you are unsure about is sure to make the issue worse, or you could make a small problem evolve into an irreparable situation. That won't make either of us happy.
If, on the other hand, you have a degree of technical expertise and are comfortable* with the device, give it a go! I really do like it when you call in and can show me that you have a good head on your shoulders. Just don't get mad if I ask you to do something you have already tried.
*comfortable, in this case, does not mean you use it daily. I mean that you are able to configure system options or change the settings of the device without referring to the manual. Just because you can push buttons does not mean you know everything about it.