Carlo, are you seriously interested in knowing what you've done? Just in case, (though I doubt it): you continuously and repeatedly put people down who are only trying to solve a legitimate issue with a critical and expensive prduct. You refuse to acknowledge IT IS A PROBLEM WITH LION OS, suggest THEY must be the problem (or too stupid to understand) and send them running to find other "causes," which is a waste of time. Your attitude, whether intentional or not, is disrespectful, as if everyone else on the thread is an idiot who doesn't know what they are talking about, or a whiner who should relish the thought of buying more equipment and software to fix something that should have worked in the first place.
In fact, many of us are quite experienced users. You blame the USER for a problem that is generated by Apple's defective Lion OS. You defend what is indefensible: that a substantial number (if not the majority - certainly everyone I know and I know hundreds of Apple users) of Lion users are having this issue, which dates from the EXPENSIVE upgrade of their computer and/or operating system and no other source.
You refuse to acknowledge that Apple should be working their butts off to solve this, not making excuses and blaming their customers. Instead, you pile on. When people who are NOT that confident about technology read your posts, they are likely to feel they have done something dumb and waste a lot of time, or make the problem worse or waste money and time trying your various unhelpful "solutions." That is just adding unnecessary distress to an already frustrating situation. That's what you've done.
Why don't you put your substantial energy into trying to get Apple to actually SOLVE the issue instead of blaming users and trying to get people to buy upgrades or do ridiculous work-arounds that don't work? (Why should anyone be confident that the next upgrade will work, when Apple has been so neglectful about fixing this one?)
At least acknowledge that customers have a right to expect that a product they purchase from Apple (at a premium price) will work, and work flawlessly. Lion does not, and Apple has not fixed it. Your refusing to see or acknowledge the facts is infuriating and damaging to the conversation. That's what you've done. (So please quit.)