What does control r do?

My MacBook air won't reboot...just has blue screen with apple and circle. Someone said control R which I did then it offered me options. I tried the disk option but it didn't help. I am afraid to try the other options as I have all of my work on this computer and am afraid of loosing it.

Hello bethanyfromlithia,
Thanks for using Apple Support Communities.
To troubleshoot this issue where you're seeing a gray screen with the Apple logo and spinning gear please follow the steps in the article below.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
Take care,
Alex H.

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We recently shut down the agent for Grid Control and yet I still see data on the "top activity" page, both current and historical. If the agent isn't uploading this data what is? And what does the agent upload if not this data?

If my memory serves me correctly, the agent uploads monitoring metrics for long term. When you are viewing the target it connects directly to the database, hence why grid has to have connect descriptors for the databases beyond just the agent using them.

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What does the volume control on the remote do?
About 6 months ago I successfully changed my remote to operate the TV. Today I reset the remote (by pressing #* and on/off button) so that it doesn't affect the TV. In this mode, should the BTVision remote control do anything (it doesn't seem to!)? I thought that it would increase/decrease the output of the BTVision box so that I would have two methods of controlling the volume - one by using the BTVision remote, and the other by using the TV remote.
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I was playing with my ipad settings (it's an older model) and noted in the advanced settings of Safari there was a place to view website databases. When I clicked on this I saw websites. How do these get there and what does the space amount mean?

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HI
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What does service "Apple Mobile Device" failed to start mean?

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http://support.apple.com/kb/TS1567
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http://support.apple.com/kb/HT1923
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Important: Uninstalling these components in a different order, or only uninstalling some of these components may have unintended affects.
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Welcome to Apple Support Communities!
All the best,
Delgadoh

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Perfect? No. But hey, thanks for what does wo

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Are you looking for this Thread that you started...
https://discussions.apple.com/message/25004385#25004385
It gets Very Confusing if you continually Start New threads all the time.

What does control r do?

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