My macbook air suddenly has no sound

All of a sudden there is no sound on my macbook air. I can click the volume up & down buttons and they look like the volume is getting louder or softer, but there is no sound at all.
And I just checked - iTunes is no longer playing (I just did the update).
Help!

Thanks Kappy - it fixed that and the other problem I was having. It's usually the first thing I do after trying obvious stuff - I must be tired to have not thought to do it this time.

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Macbook air Wi Fi and sound stops every time it goes to sleep. i have to restart it every time to use wifi and sounds. this started happening just after the latest upgrade to X. any reasons why its doing that and how to fix it.

Macbook air Wi Fi and sound stops every time it goes to sleep. i have to restart it every time to use wifi and sounds. this started happening just after the latest upgrade to OS X. any reasons why its doing that and how to fix it.

Test after taking each of the following steps. Back up all data before making any changes.
1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved.
2. Follow the instructions in this support article under the heading "Symptom: The network connection drops unexpectedly."
3. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.
4. From the Location menu at the top of the Network preference pane, select Edit Locations. A sheet will drop down. Click the plus-sign button to create a new location. Give it any name you want. In the new location, set up the Wi-Fi service with the same settings you used before. Click Apply and test.
5. Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.
6. In some cases, the problem has been resolved by repairing permissions on the startup volume.
7. Turn off Bluetooth and test.
8. Reinstall OS X.

My new macbook air sometimes has trouble starting up. It gets stuck at various stages. I have reinstalled Lion twice. That solves the problem for a few days and then in reoccurs. Any ideas? Thanks, Marty

My new macbook air sometimes has difficulty booting up. I reinstalled Lion twice. That soves the problem temporarily and then after a few days it reoccurs. It also has trouble at times opening mail or Microsoft Word. Any ideas? Thanks, Marty

Marty,
Can you elaborate on what you mean by "difficulty" during the boot sequence? When/where is the difficulty occurring? Are you getting to the Apple logo? Apple logo with spinning gear? Blue screen? Login window? There's many phases to the boot sequence and when it fails can go a long way in determing what's causing the problem.
Also, what sort of third party software is installed? It sounds like at a minimum you've installed Microsoft Office? Anything else?
Lastly, after you reinstall Lion do you perform a restore from backup or remigrate your data/content right back into the new OS? If so that could potentially be the problem right there. But truthfully there's more information that needs to be provided to begin recommending troubleshooting steps.

MacBook Air intermittently has issues connecting to websites when wireless shows connected to the internet. The pages show that I am offline, but I can ping Google DNS. Windows PC, iPhone and Android phone have no issue displaying the same web pages.

MacBook Air intermittently has issues connecting to websites when wireless shows connected to the internet. The pages show that I am offline, but I can ping Google DNS. Windows PC, iPhone and Android phone have no issue displaying the same web pages.How do I solve this issue?

Go step by step and test.
1. Power off the router. Unplug it from the wall. Wait a while.
    Plug it back to the wall. Power the router on. Wait until all the lights are lit properly. It will take a while.
    Restart the computer.
    Start up in Safe Mode.
    http://support.apple.com/kb/PH14204
2. Empty Caches
    Safari > Preference > Advanced
    Checkmark the box for "Show Develop menu in menu bar".
    Develop menu will appear in the Safari menu bar.
    Click Develop and select "Empty Caches" from the dropdown.
3. Deselect Proxies if selected.
    System Preference > Network > Advanced > Proxies Tab
    Under "Select Protocol", uncheck any box if selected.
    Click "OK" then "Apply”.

My macbook air won't play sound

my macbook air wont play any sound audio at all

Go step by step and test.
1. Restart.
2. Plug in the headphone and remove it.
3. Reset PRAM. http://support.apple.com/kb/PH4405
4. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".
5. Remove the logitech mouse receiver if you have one.
    Update Boom, Windows Media Player and all other third party plug-ins.
If this does not help, keep restarting the computer until a fix is available.

Can I import iWork from my Mac, which has Snow Leopard, to my MacBook Air, which has Mountain Lion?

Can I import iWork from my Mac, which has Snow Leopard, to my MacBook Air, which has Mountain Lion?
I would appreciate any advice on the intricacies of operating with Snow Leopard on my main computer and Mountain Lion on my MacBook Air.

I'm not sure there are any intricacies except you can't use iCloud to keep the two things synced. It would be mostly contacts, Safari bookmarks, Calendars, notes, etc.
Also, iCloud allows saving iWork documents in the Cloud, so you can access them on both systems. That would not be available for the old Mac.
The two OSes are similar enough that it wouldn't be too difficult to work between the two, but there will be differences in using the Finder (contextual menu changes)
I thought I would have more, but I've been off Snow Leopard for so long now, I'll leave this for someone who is currently operating like that or recently switch to Mountain Lion from SL.

My MacBook Air keyboard has become raised and spacebar is not working!

My sons MacBook Air Keyboard has become raised/warped. The centre point of the raised area is the top left hand corner of the trackpad. I would say the highest point is 2 to 3mm above the normal surface line.
The first signs of the problem was an inconsistency in the spacebar operation. Now the spacebar fails to operate at all! Apart from the Spacebar the Air seems to perform all other functions normally.
The raised area /warped area has also created a wobble when the MacBook Air is on a flat surface.
Model A1237
MacBook Air 1.6 Ghz Intel Core Duo
Memory 2GB 667 MHz DDR2 SRAM
Serial Number W8806AVHY51
Software Mac OS Lion 10.7.1
Thank you for taking the time to read my issue and hopefully provide some guidance!!

If your Air came with Lion pre-installed you might find it a bit complicated to downgrade. In any event the battery should be replaced under warranty. [My 17" battery was replaced by Apple at the Genius Bar even though the year warranty had expired; they were genuinely concerned since there was a safety issue concerning power!] On the point about your 3 Lion concerns, I note that many on this forum have dealt with similar issues. In my case I purchased a new machine with Lion rather than upgrade my existing Snow Leopard MacBook Pro 13" or iMac 27" and have found there to be no troubles whatsoever. I enjoy the speedy response and smooth execution of tasks on 10.7.2. Good luck with your battery issue.

Macbook air suddenly running slow. Closed all applications, rebooted, doesn't solve the problem. Any ideas?

macbook air suddenly running slow. Closed all applications, rebooted, doesn't solve the problem. Any ideas?

It's very likely that your boot drive is failing. Back up all data immediately and schedule a "Genius" appointment at an Apple Store.

I have a first generation MacBook Air that has been refurbished via the Apple store. I installed Snow Leopard about a year ago and now, my computer wont update! It will download the updates restart my computer, but then I get an error message!

I have a first generation MacBook Air that has been refurbished via the Apple store. I installed Snow Leopard about a year ago and now, my computer wont update! It will download the updates restart my computer, but then I get an error message and the computer wont restart!

What is a error message and what do you see when it appears?
Haven't much problem with Airs around here, since they have a SSD they tend to be more reliable.
Perhaps it was a bad update, have you ran through this list of possible fixes?
Do as many as possible, starting with #1. Until the problem is resolved.
Use the boot 10.6 USB instead of the disk of course.
Step by Step to fix your Mac

My late 2010 macbook air suddenly crashes, show a blue screen and restart. What can i do to solve the problem?

My late 2010 macbook air, suddenly shows a blue screen and restart. I´m tired of loosing my job. Someone can help me?

Firefox doesn't do email, it's a web browser.
If you are using Firefox to access your mail, you are using "web-mail". You need to seek support from your service provider or a forum for that service.
If your problem is with Mozilla Thunderbird, see this forum for support.
[http://www.mozillamessaging.com/en-US/support/]
or this one
[http://forums.mozillazine.org/viewforum.php?f=39]

Why has my macbook air suddenly lost 6 GB of memory

When I went to check how much storage I had on my MacBook Air it told me I had 90GB left. The last time I checked i had

check your storage, local snapshots or "other"
See here for answer about the OTHER which is taking up space:
http://pondini.org/TM/30.html
and here:
http://pondini.org/OSX/DiskSpace.html
See Kappys excellent note on the rest of “other” files taking up your space:
What is "Other" and What Can I Do About It?
local snapshots....read about same here::
http://pondini.org/TM/30.html

Can I retrieve files off my MacBook Air that has crashed (White screen flashing folder)?

Besides a few freezes here and there, my MacBook Air has worked fine. However when I opened it the other day, It wouldn't power on. I pressed the power button a few times, and it finally powered on with a completely white screen. I powered it off and on a few times but nothing changed. I figured if I let the battery die, maybe it would work when I charged it again. I left the screen open, but after 10 min, a flashing folder with a question mark popped up, And it's been flashing ever sense. I took it to apple, they said it was a software issue. They plugged it into a g-drive to reinstall, along with other cords and got their apple account up, although none of my information showed up. They said the Mac forgot its software, and nothing of mine would show. They said I have to replace the lap top and gave me prices/options. I never got my question fully answered on if I can retrieve my photos, notes, garage band, music, etc. I left apple with out any trade. Does anyone know of any way I can get my pictures, music, voice memos, and notes, back? I'm desperate and have lots of important stuff that I can't access. I'm also losing work not having access to my computer. But I'm not trading it in until I try/or know there is no way to get my stuff back. I will pay anything to get my stuff back! I honestly would rather have my stuff then the computer. And just get a new one. Any advice will help. Thanks!

a flashing folder with a question mark popped up,
Can mean that your Mac can't find a system folder to boot from.
Try restarting while holding down the Option key. That should prompt the Startup Manager window where you can select the startup disk and restart.
Startup Manager: How to select a startup volume
If the disk is not available, then it's failing or has failed.
If you did not backup your important files, an alternative would be data recovery but it's expensive.
One suggestion > Data Recovery by DriveSavers

Since the latest system update to 10.9.2 I can no longer get a signal on my TV through the HDMi lead from the Macbook Air. Has anyone else had this problem and know how to fix it.

Since the latest system update to 10.9.2 I can no longer get a signal from my Macbook Air to my TV. Has this happened to anyone else and how can I fix it.

1. System Preferences > Flash Player > Advanced > Delete All
    Press “Delete All” button under “Browsing Data and Settings”.
2. Install Adobe Flash Player.
    System Preferences > Flash Player > Updates
    Press the “Check Now” button.
    http://get.adobe.com/flashplayer/
    Download it and quit Safari from Safari menu in the menu bar.
    Follow the prompts to install Adobe Flash Player.

Hiya. Since I upgraded to Firefox 36 my MacBook Air battery has been draining horrendously quickly. Is there anything I can do to fix this?

Since I upgraded to Firefox 36 a few days ago my MacBook Air's battery has been draining at a horrendous rate when I've got Firefox open. For instance, just now when I'd not got Firefox open, my activity monitor told me I've got two hours usage, but as soon as I opened Firefox (even with not having a window open) my usage was instantly downgraded to about 50 minutes. I'm having to recharge the lappy every four hours, which is ridiculous - and wasn't happening until I installed the upgrade.
On top of that, since I installed the upgrade, Firefox has crashed at least once a day, which hasn't happened at all in the nine months I've had this MacBook Air.
This isn't like you guys! What's happened?

Hi Cathy, it is mysterious why Firefox is so busy. Often Firefox has cache maintenance and other tasks that make a lot of disk accesses, but they shouldn't run continuously.
Could you try operating Firefox in its Safe Mode for a while to see whether that makes any difference? That's a standard diagnostic tool to deactivate extensions and some advanced features of Firefox. More info: [[Troubleshoot Firefox issues using Safe Mode]].
You can restart Firefox in Safe Mode using either:
* "3-bar" menu button > "?" button > Restart with Add-ons Disabled
* Help menu > Restart with Add-ons Disabled
Not all add-ons are disabled: Flash and other plugins still run
After Firefox shuts down, a small dialog should appear. Click "Start in Safe Mode" (''not'' Reset).
Any difference?

My late 2010 MacBook Air suddenly crashes and will not stay on.

I returned from a trip during which I used my MacBook Air (Late 2010) constantly. Upon leaving the hotel I closed the computer and put it into my carrier and did not open it until arriving at home later that day. There was moisture on the keyboard and screen at the corresponding position in an area about the size of a 50¢ piece, I cleaned that up and turned the machine on and it booted up and then created. Several times it would turn off and on a few times without any input from me. At times it will boot up like all is well but with any keystroke it crashes to a black screen. If I had to guess, I'd say the HD is toast. It was replaced under warranty once already. The moisture is a complete mystery. Any ideas?

What method were you using for travel? I think sometimes condensation can happen in flight. Sounds like there was more moisture on the motherboard as well. Leave it for a few days in the sunlight if possible and see what happens after that.

My macbook air suddenly has no sound

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