On my Facebook home page, usually on the top-right corner, there is a bubble that says ___ requests, and ____ notifications, with the little sign-post logo next to it. The notifications alert on the home page is gone, and I don't know why!! Can you help me get it back onto my homepage?...

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A friend showed me how she can recover deleted files on her Mac OS X system using some utility or the other and it got me to thinking... how do I delete files on my own Mac so that she - or anyone else - can't recover them later?...

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Dave, is a retweet where you redo a message or retweet someone else's message in Twitter? Also, how do you do that...?...

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I've started to get involved with Twitter based on watching your tweets and am enthused, but anxious about people I don't know reading about what I'm doing. So I want to protect my Twitter updates. Is that a good idea? How do I do it?...

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I am just launching a new discussion forum that'll be only for people with valid account credentials (login, password, ya know) and I want to put Google AdSense ads on it. I have heard that's not possible, but I read that it is okay with Google now. But how do they know what's on those pages if the AdSense targeting engine doesn't have login credentials?...

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I swear someone's logging into my Google Gmail account and reading my email. I know it should be impossible, but I dunno. Is there some way to check and see if that's happening?...

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After two of my friends had information stolen from them through public wireless networks, I'm completely paranoid. Is there some way to connect to Google's Gmail service securely?...

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I got this question via Twitter, rather appropriately: How do you block someone from following you or even sending you @replies in Twitter?...

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My sister and I share a Mac computer and I'm tired of her looking at my files. Is there some way I can protect or hide my folders without downloading any software she'd notice?...

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My parents are always checking up on what Web sites I visit and it's getting really old. Is there some way to have Firefox hide where I go so they can't keep tab on me?...

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This is a simple question and I used to know the answer. In an office setting, I have many people coming in to ask questions. What is the keystroke command to darken my computer screen and/or bring up my screensaver. This would prevent some from trying to see what project I'm working on--dealing with human resources, etc. I'm using Windows XP....

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What are your thoughts about putting an email/contact address on a blog?  Sometimes people don’t want to leave a comment and send me long letters through the ‘conversation’ function at my Etsy shop, which is really strange, because they have to go to a whole different website and set up an account.   I don’t want the email addy to be harvested but I think I need a way for people to get hold of me...

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Hey bro! I'm staying at a campground and when I connect to the wireless network, I get a warning that there are all these other computers connected from my PC-cillin program, and it asks me if I should trust them or not. What does it mean?...

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My new iPhone is the belle of the ball. In fact, it's a problem: everyone who sees it picks it up and starts playing with it. Is there some way I can enable a security code or password so that only I can use it when it wakes from sleep?...

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I've made the move to Microsoft Windows Vista and am digging the new interface, but I am a bit frustrated that anyone else who uses my computer can see the latest applications and files I've worked with right on the Start menu. Is there some easy solution?...

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I am anxious that I've been a victim of identity fraud: I just got an email from some mortgage broker indicating that I'd been approved for a refinance of our home, but I didn't apply for anything like that! I figure it's some scam, but they showed the amount of our original home loan and that's made me jumpy. Am I a victim or what?...

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I know that it's probably crude, but I keep getting spam talking about "milf" and have no idea what it means. Can you enlighten me?...

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Ok on Myspace, when i'm online, its not showing that i am, is there a way to change that setting so it will show my friends when i'm online??...

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I'm wondering if there is a way to save the google safesearch preferences for users in a mac os x server environment. We have kids that we would love to have search using only the "strict" filtering. Is there a way to set that preference in os x server? Thank you very much!...

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I keep getting stupid and spammy comments on my MySpace profile and I have heard that there's some way you can actually have them all queue and manually approve them? That sounds awesome. Howzit done, Dave?...

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