I get a circle with a slash when I hit f8, F9 or f10 to backlight keys

My keyboard back lighting doesn't work much but I reset PMU and PRAM then suddenly it worked. Now though, about an hour later, if I hit any of the keys I get a circle with a slash as if it is turned off, illegal, or not installed. Anybody know what it means? I have the backlight checked off in the energy manager.
I'm confused.
Also, the lower memory slot is kaput.
thanks,
Connie

I fixed it by putting the install disk in and verifying/repairing the disc and the permissions.
The memory slot was not repaired. I understand it was a problem with some powerbooks but the repair program ended in July 2008.
Connie

Similar Messages

I did not realize Ilife was already on the new mac, and installed I life from a disk. Now Iphoto has a circle with a slash, when trying to open is says (you can open iPhoto because is may be damaged or incomplete. ?

I did not realize Iife was already on the new mac, and installed I life from a disk. Now Iphoto has a circle with a slash, when trying to open is says (you can open iPhoto because is may be damaged or incomplete. ?

This sounds different than with my IOS devices, since I am able to see the photos even with a connection to the Internet.
Do you mean without a connection to the internet? With a connection it's logical you would be able to see the PS.
The following is from iCloud: Photo Stream FAQ
Can photos be saved or downloaded from a shared photo stream?
Yes. Once photos are shared, anyone who can view the shared photo stream can download and keep the photos permanently.
On a device using iOS 6 or later, you can save photos to the Camera Roll. On a Mac, using iPhoto 9.4 or Aperture 3.4, you can save photos from the shared stream to your local Photo Library or any other location on your Mac. On a Windows PC, you can copy photos from a shared photo stream to any folder. On the web, photos can be downloaded directly to your computer from the detail view of each photo.
This tells me that the image files are not on the HD unless the subscriber chooses to download them.

I have tried replacing the Firefox start-up page with my own home page choice many times and it will not set--I get the circle with the slash through it when I try to drag the webpage icon to "home."

I am using Windows 7 Professional, and have tried all of the recommended troubleshooting tips for this problem. I do not have the new version of Firefox installed because it had all kinds of problems so I went back to the version I had--I believe it was 3.6.24. Since then, I have not been able to set a home page. Any help out there? Thank You!

Try to drag the tab or the website's favicon on the Home button if you currently drag selected text.
If it doesn't work with dragging the icon then copy the URL to the clipboard and paste it via the Options window in the home page field.
*Tools > Options > General > Startup: Home page
Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

Firefox 4.0 will not download at all, I get the circle with a slash. I have mac osx.

I had firefox 3.6, downloaded free upgrade, which totally replaced the old one, it's gone.
But the new icon has a circle and slash on it and is not viable. Doesn't work, doesn't open, messages says: You cannot open the application Firefox.app because it is not supported on this system.
I have Mac OSX 10.4.11.

Same problem, but I'm on OSX 10.5.8 - non Intel mac.
Wording is actually "... because it is not supported on this architecture."
Ironic that I have to use Safari to post this. :)

I am not able to change order of bookmarks or tabs by clicking and dragging. I get the circle with a slash thru it icon. How can I fix this?

http://www.mahalo.com/how-to-organize-and-move-your-tabs-in-firefox/

This can be a problem with the file places.sqlite that stores the bookmarks and the history.
* http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox

Circle with a slash that goes away after restart?

Hello there!
I have an old mid-2007 imac 24 7.1 Few weeks ago i installed an SSD drive inside and OS Mavericks.
Everything is/was fine but recently i'm getting this circle with a slash. I've read that its an os files problem that people can bypass by going into safe mode and totally remedied by reinstall. However in my case right after I restart my computer, everything is back to normal, except for a small, almost unnoticeable delay during start up (loading under apple on startup white screen)
Any idea what is it and is it anything concerning?

Startup in OS X Recovery, go to Disk Utility and Repair your Startup Volume.

I get a red circle with a slash through it when trying to move music into folders.

I had to reformat my laptop hard drive. I moved everything to an external hard drive, and then brought it back after the reformat. I did something wrong, so all the folders are gone. I can create new playlist folders now, but when I try to move the music over, as soon as I get in the area with the playlist folders, it gives me the red circle with the slash through it, and stops me form dropping the songs in the folders.
I am logged into my account and the computer is authorized to my iTunes. Not sure where to go from here, other than the Apple store.

iTunes doesn't pay much attention to file and folder names with one minor exception. On import any untagged files will be given their filename as their track name.
You can drag a folder full of files onto a playlist and all the tracks will be added to the playlist, having first been added to the library if iTunes isn't already aware of them.
When you add files to iTunes from outside the iTunes Media folder and the option Copy files to iTunes Media folder when adding to library is enabled then copies will be created, and iTunes connected to those. If you subsequently import the same folder you will create duplicate files. If your files start life inside the iTunes Media folder, or that option is disabled, then they can be imported again without creating duplicates. However, if your files start life inside the iTunes Media folder and the option Keep iTunes Media folder organised is enabled, then once you have added the folder to the library the files inside it will probably be rearranged.
In the long term your library will be easier to maintain if all the files are inside the iTunes Media folder. It is probably easier to let iTunes manage them unless you are really particular about the layout or are importing files without tags such as wav, in which case I have some scripts that can extract useful information about the file from the filename and path provided iTunes doesn't get to throw it away first.
If your main aim is to rebuild some existing playlists, which exist by dint of all the files for each playlist being in separate folders, and you want to avoid creating duplicates, then try this.
Create a new empty playlist, select the music folder and put it into date added order.
Move all the files into the Automatically add to iTunes folder.
Select all the recently imported files, drag and drop them onto the new playlist.
Repeat until all files are added
tt2

Itunes cannot move in the main menu. I just went to 10.5.142 and now in the main menu on Itunes it will not allow me to go into any playlist. I get a circle with a red x when I double click on a particular playlist and it will not go????

Cannot move around in the Itunes main menu. I just downloaded 10.5.142 and now when I click on a playlist I get a circle with a red slash! Cannot go there.
Cannot navigate in the main menu. Suggestions????

I am having the exact same problem, have vista/hp media center also, sometimes if I double click it will open after all, the arrow keys do navigate however, any suggestions?

I downloaded the newest version and there is a Circle with a slash through it over the firefox icon. When I click on it the message is the system does not support this version. How do I reinstall the previous version?

I updated firefox. When I did there was a circle with a slash (as in No!) across the firefox icon. I clicked on it to open the browser and the error message reads: the application firefox cannot be launched - 10661
How do I go to the previous version that worked just fine?

Firefox 3.6.x is the last available from Mozilla for PPC Macs. 
http://www.mozilla.com/en-US/firefox/all-older.html
For older Macs that aren't supported in Firefox 4+ versions, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 . 
http://www.floodgap.com/software/tenfourfox/ 
http://tenfourfox.blogspot.com/ 
https://code.google.com/p/tenfourfox/wiki/PluginsNoLongerSupported

My Mac Pro tower quad core crashed and is showing a NO sign (the circle with a slash through it). How do I safely get it to come back up ? Model A1186

My Mac Pro tower quad core crashed and is showing a NO sign (the circle with a slash through it). How do I safely get it to come back up ? Model A1186

General purpose Mac troubleshooting guide:
Isolating issues in Mac OS X
Creating a temporary user to isolate user-specific problems:
Isolating an issue by using another user account
Identifying resource hogs and other tips:
Using Activity Monitor to read System Memory and determine how much RAM is being used
Starting the computer in "safe mode":
Mac OS X: What is Safe Boot, Safe Mode?
To identify potential hardware problems:
Apple Hardware Test
General Mac maintenance:
Tips to keep your Mac in top form
Troubleshooting: My computer won't turn on
https://support.apple.com/kb/TS1367
Where are your bootable backups and clones stored?
What do you have to boot from to restore or attempt to recovery files that are not backed up?
It won't be a PowerMac. People tend to think they look alike? or mean the same thing.
http://www.everymac.com/systems/apple/mac_pro/specs/mac-pro-quad-2.66-specs.html
Try zap PRAM and SMC Reset. If you have ATI 5770 which many have upgraded to you won't be able to use older DVD or systems than 10.6.5

When i try to see some of my photos the photos appear and when i click on the individual photos I get a circle with an exclamation point. What's going on?

Why am I getting a circle with an exclamation point when I try to acces my photos ?

The ! turns up when iPhoto loses the connection between the thumbnail in the iPhoto Window and the file it represents.
Try these in order - from best option on down...
1. Do you have an up-to-date back up? If so, try copy the library6.iphoto file from the back up to the iPhoto Library (Right Click -> Show Package Contents) allowing it to overwrite the damaged file.
2. Download <a href="http://www.fatcatsoftware.com/iplm/">iPhoto Library Manager</a> and use its rebuild function. This will create a new library based on data in the albumdata.xml file. Not everything will be brought over - no slideshows, books or calendars, for instance - but it should get all your albums and keywords back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
3. If neither of these work then you'll need to create and populate a new library.
To create and populate a new *iPhoto 08* library:
Note this will give you a working library with the same Events and pictures as before, however, you will lose your albums, keywords, modified versions, books, calendars etc.
In the iPhoto Preferences -> Events Uncheck the box at 'Imported Items from the Finder'
Move the iPhoto Library to the desktop
Launch iPhoto. It will ask if you wish to create a new Library. Say Yes.
Go into the iPhoto Library (Right Click -> Show Package Contents) on your desktop and find the Originals folder. From the Originals folder drag the individual Event Folders to the iPhoto Window and it will recreate them in the new library.
When you're sure all is well you can delete the iPhoto Library on your desktop.
In the future, in addition to your usual back up routine, you might like to make a copy of the library6.iPhoto file whenever you have made changes to the library as protection against database corruption.

Sometimes on a re-start I get the apple logo then a circle with a slash through it.

Hello all! I have a 2010 Mac Pro sometimes on a re-start I will have the apple logo then it changes to a circle with a slash through it, the circle stays for awhile then eventually it does boot into the desktop, is there an issue going on that I need to address? Thanks in advance. Carl

Mac OS X: "Broken folder" icon, prohibitory sign, or kernel panic when computer starts

What does it mean when all I see on the screen is a circle with a slash?

I did a hard shutdown when my MacBookPro was not responding to a Save command, When I rebooted all I got was a circle with a slash through it in the center of the screen, and the "spinning wheel of death" below it. What happened??

Mac OS X: Gray screen appears during startup
What exact MacBook Pro and what Mac OS X version do you use, since the signature only states the name and the iOS version of your iPhone or iPad?

Start up problems, get the circle with slash symbol then hangs forever

I did a bad thing, I downloaded some software from the Internet. It was from Smith Micro. After the first re-start after installing, I had start-up problems with the "not allowed symbol" (a circle with a slash through it) coming after the Apple symbol then hanging forever.
The Smith-Micro programs I down loaded were Spring Clean-up and Internet Clean-up. I have not used either program, just installed them.
I have run Disk Utilities from my start-up disk, everything tested out perfectly. Tried a Safe Boot, computer started up but I couldn't do anything (useless for me). Tried to Zap P-RAM, didn't work. Tried booting in target mode, got a weird symbol ( can't even explain this one) and it just hung there. Unconditional reboot works, and I can use the computer like normal. Does the unconditional boot mess anything up. Should I use it from now on?
I used the included uninstaller for both Spring Cleaning and Internet Clean-up, the computer still won't start-up normally.

There's hardly any circumstance that requires the so-called "clean" install; it's a windoze-centric thing. Just reinstall, ensure that fixed the issue, then run Software Update. Snow Leopard's installer only replaces the OS components and basic Apple apps, such as TextEdit, Mail, Safari, Terminal, and Calculator, leaving *everything else* in place. In the future, always make a restorable backup before installing new stuff.

Will only boot to a circle with a slash

MacBook Pro will only boot to the circle with a slash symbol. I have tried all the turn on hold C, X, Option key suggestions and have tried the clearing ideas (hold cntl, commmd, p, r). Have put the system disk in to boot from that, now I cannot get the disk out.
Any suggestions out there?

Your computer is not recognizing your hard drive. Plug a mouse in and hold the mouse key down when booting. The disc should eject. Next, make sure the disc is real clean with no finger prints or scratches on it. Then try booting from it again (by holding the "C" key down) when booting. See if your Disk Utility sees the drive and run that. If it does not, or the unit will not boot from the install disc, then you have a serious problem--possibly logic board-related. You could also try running DiskWarrior and see if that will boot and repair the drive.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG

I get a circle with a slash when I hit f8, F9 or f10 to backlight keys

Similar Messages

Maybe you are looking for