When I try to open email I get #403 could not sign in user

I upgraded to 5.0 and my email said #403 : could not sign in user so I down graded to 3.6 but it still gives me the same comment is it cookies? thats my problem?

Cannot log in to websites
https://support.mozilla.com/en-US/kb/Cannot%20log%20in%20to%20websites
Check and tell if its working.

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HT1349 What to when trying to download an app and get message "could not sign in, An unknown error has occurred"

What do you do when trying to download an app from App Store and get message: "could not sign in, an unknown error has occurred."

Sign out of your account, restart the iPad and then sign in again.
Settings>iTunes & App Store>Apple ID. Tap your ID and sign out. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
Go back to Settings>iTunes & App Store>Sign in and then try again.

When I try to activate my iMessage it says: could not sign in. Check your network settings and try again.

When I try to activate iMessage it says: could not sign in. Please check your network connection and try again.

- Make sure that Settings>General>Date&Time is set to Automatic
- Go to Settings>wifi>the connected network and change the DNS to Google's 8.8.8.8

For the last 24 hours, when i try to open, all i get it firefox not responding..and i can't open it

Since I installed 4.o, i have benn having trouble opening,
I keep getting the message firefox not responding.

Sign Out When Sign In http://forums.adobe.com/thread/1450581?tstart=0 may help
-and http://helpx.adobe.com/creative-cloud/kb/unable-login-creative-cloud-248.html
And, just in case you ever have this problem...
BLANK Cloud Screen http://forums.adobe.com/message/5484303
-and step by step http://forums.adobe.com/thread/1440508?tstart=0
-and http://helpx.adobe.com/creative-cloud/kb/blank-white-screen-ccp.html

I used to be able open video files in Photoshop CS6. When I try to open it now it says "Could not complete your request because it is not the right kind of document."

I don't know what I did. I started messing around with After Effects and accidentally opened up Adobe Media Encoder Queue. After that, that's when I noticed the problem. I can still import the video frames into layers but I can't open it up directly. I tried opening .avi, .mkv, and .wmv files. Also just noticed I'm missing the "change timeline view into video view" button. Any help will be appreciated! Thanks.

You either borked your hardware acceleration stuff by changing graphics settings/ installing a different driver or you messed up your CoDecs (and the associated hardware acceleration options) by installing a Codec pack or alternate media player... Impossible to be more specific, since you haven't bothered to provide even the most basic system info.
Mylenium

My 2014 version of InDesign disappeared from my dock. when I try to open it i get an error message

my 2014 version of InDesign disappeared from my dock. when I try to open it i get an error message

Hi [email protected],
Please specify the error message that you are getting.
Regards,
Sheena

When I try to open photoshop I get a "help adobe improve it's produts" dialog box every time and it freezes

When I try to open photoshop I get a "help adobe improve it's produts" dialog box. No matter what I do, I get this box when I try to open a file in photosop never opens although it appears to be

Hi Steadyalberta,
Something might be preventing Photoshop from being able to save your selection on the dialog window properly. You might try right clicking and choose Run as Administrator on the Photoshop icon when launching (Windows) or test if the behavior persists when using a newly created admin user account.
Hope that helps,
- Dave

I just installed Lightroom CC. When I try to open it, I get an error message: "An internal error has occurred. Cannot create the required folder: ..."

I just installed Lightroom CC. When I try to open it, I get an error message: "An internal error has occurred. Cannot create the required folder: ..."

Cannot create the required folder

I downloaded Firefox 4 onto my PowerPC G4 1.67GHz running Mac OSX 10.5.6. When I try to open it I get error message You cannot open the application "Firefox" because it is not supported on this architecture. I can't find my Firefox 3.6.16 I'm on Safari.

I just want to download Firefox 3.6 again
I downloaded Firefox 4 onto my PowerPC G4, 1.67GHz running Mac OSX 10.5.6. When I try to open it I get error message You cannot open the application “Firefox” because it is not supported on this architecture.

Use Tony's suggestion. I am running it right now and it is awesome. I love Mozilla but they basically screwed all of those older Macs over. Come on Mozilla. These Macs still work, and there are plenty of people with them out there.

When I try to open Firefox I get a message saying it is already open. However it is not open and i cannot access Firefox

When I try to open Firefox I get a message saying it is already open. However it is not open and i cannot access Firefox

See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use
* https://support.mozilla.com/kb/Firefox+is+already+running+but+is+not+responding
If it happens after you've closed Firefox and want to restart the see these:
See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
See "Firefox hangs when you quit it":
*https://support.mozilla.com/kb/Firefox+hangs

After updating my MacBook Pro to yeosemite I want my old screen saver picture back. I did a full back up before the install. I found the "Settings" folder in Time machine but when I try to open it I get an error message saying "You can not open this

After updating my MacBook Pro to yeosemite I want my old desktop picture back. I did a full back up before the install. I found the "Settings" folder in Time machine but when I try to open it I get an error message saying "You can not open this folder. It is in TimeMachine".

Can you browse the Time Machine drive from Finder?
If you can and you know where the picture was stored ie on your desktop you can browse through the folder structure to the picture copy it and paste it somewhere on your new install before right clicking it and 'set as desktop background'

When i open iphoto i see my photo's for 1 second and then they are gone .The photo's are still there but i can see them only on the bottom or top of my screen when i try to open them i get a sign that it is not possible.Can somebody please help me?

when i open iphoto i see my photo's for 1 second and then they are gone .The photo's are still there but i can see them only on the bottom or top of my screen when i try to open them i get a sign that it is not possible.Can somebody please help me?

Have you upgraded to iPhoto 9.6 for compatibility with Yosemite? If not, try that first.
It looks like iPhoto has lost the connection between the thumbnails and the original image files.
This can be caused by a corrupted iPhoto library, or the originals have been deleted or moved.
Try first to rebuild your iPhoto Library:
If you do not have a current backup of the iPhoto library, make a copy of the library, but do not overwrite any previous backup.
Launch iPhoto with the ⌥⌘-key combination (option-command) held down.
Select "rebuild" from the first aid panel. This may take a while for a large library.
Can you now see your photos again?
If not, rebuild the library with iPhoto Library manager as described by Old Toad: Re: iphoto crashed

HT1926 I have just updated itunes on my pc (widows XP) to the latest version. When I try to open it i get an error message saying the application failed to start because MSVCR80.dll could not be found. Not sure how to resolve this. Have tried to reinstall

I have just updated itunes on my pc (windows XP) to the latest version. When I try to open it I get an error message saying the application failed to start because MSVCR80.dll was not found< Have tried reinstalling with no luck. Any ideas?

try removing all itunes and all other apple program
follow this link for more info. http://support.apple.com/kb/HT1923
reboot ur window after uninstalling
after that download the latest itunes setup and install.

I recently did an update for my iTunes and now when I try to open it, I get an error that says that my data execution prevention is not allowing it to open. How do I fix this issue?

I recently did an update for my iTunes and now when I try to open it, I get an error that says that my data execution prevention is not allowing it to open. How do I fix this issue?

Try updating your QuickTime to the most recent version. Does that clear up the DEP errors in iTunes?

I had a new hard drive fitted to my imac and restored it from my time machine back when I try to open itunes I get this message "the itunes library extras.itdb file is locked, on a locked disk, or you do not have write permission for this file"

I had a new hard drive fitted to my imac and restored it from my time machine back up on an external hard drive when I try to open itunes I get this message "the itunes library extras.itdb file is locked, on a locked disk, or you do not have write permission for this file"

To solve this issue all I did was check to ensure that the file permissions were set as described by the earlier posts, followed by simply deleting the iTunes Library Genius.itdb file. Once the file was deleted I was able to open iTunes without difficulty. Note that I am running Windows 8. Hope this helps!

When I try to open email I get #403 could not sign in user

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