I get this error message about once a week

"We could not complete your itunes store request.  An unknown error occured (4002)"
"There was an error in the itunes store.  Please try again"
I have made no request to the itunes store.

About once a week ... by any chance, are you using iTunes Genius? (That updates your information with the Store about every week or so.) Is the message popping up when delivering genius results to the Store?

Similar Messages

  • Keep getting this error message about library backup...

    When Itunes is running, after a little while it gives me this message saying +"Cannot backup library. You do not have enough access priviledges to perform this action"+ What does this mean? Everything is running fine otherwise. Btw, I am running Windows 7
    On a side note, I recently just lost all of my playlists and music and had to reload everything because ITunes just decided on its own to wipe everything out. Needless to say, I was furious. I loaded the songs back in but recreating the playlists takes a lot of time and I don't want this to happen again. I wonder if this message had anything to do with that fiasco. Any ideas?

    I started getting this at the same time. Must be something on their end. It's all still working though which is weird.

  • Keep getting this error message about inbox when opening Thunderbird

    current operation of Thunderbird did not succeed. The mail server....... ( then message cuts off)

    At this point I think you should get Applejack...
    http://sourceforge.net/projects/applejack/
    After installing, reboot holding down CMD+s, (+s), then when the DOS like prompt shows, type in...
    applejack AUTO
    Then let it do all 6 of it's things.
    At least it'll eliminate some questions if it doesn't fix it.
    The 6 things it does are...
    Correct any Disk problems.
    Repair Permissions.
    Clear out Cache Files.
    Repair/check several plist files.
    Dump the VM files for a fresh start.
    Trash old Log files.
    First reboot will be slower, sometimes 2 or 3 restarts will be required for full benefit... my guess is files relying upon other files relying upon other files! :-)
    Disconnect the USB cable from any Uninterruptible Power Supply so the system doesn't shut down in the middle of the process.
    Just sits there occupying very little space & never interfering, unless you need to invoke it in Single User Mode.
    Do not try to run in Terminal from the GUI.

  • Okay so my phone crashes approximately every 30 seconds. I have tried resetting it by DPU as well as on the phone itself.  Once in awhile i get an error message about unknown error 1.  If i look at the diagnosis or if runs on itunes i get the following i

    Okay so my phone crashes approximately every 30 seconds. I have tried resetting it by DPU as well as on the phone itself.  Once in awhile i get an error message about unknown error 1.  If i look at the diagnosis or if runs on itunes i get the following.  When I called the support at AT&T they think the phone is shot and it is a hardware thing but i have a hard time believing that when it happened when I sync'd it to my computer.  It did get progressively worse though, at first it crashed not that often and then got worse.  So restores are failing, recovery, everything.  Anyone run into this? 
    11-11-16 18:20:36.319 [2232:16dc]: amai: tss_submit_job: HttpQueryInfo returned 200
    2011-11-16 18:20:38.350 [2232:1c50]: <DFU Device 0F128BE0>: production fused device
    2011-11-16 18:20:38.350 [2232:1c50]: unable to open device_map.txt: No such file or directory
    2011-11-16 18:20:38.350 [2232:1c50]: WinDFU::OpenDeviceByPath: \\?\USB#VID_05AC&PID_1227#{B8085869-FEB9-404B-8CB1-1E5C14FA8C54}\0000#1bfe4c4c
    2011-11-16 18:20:39.132 [2232:1c50]: WinDFU::UploadData: EOF, cbRead: 553
    2011-11-16 18:20:39.147 [2232:1c50]: WinDFU::UploadData: ZLP
    2011-11-16 18:20:39.163 [2232:1c50]: WinDFU::FinalizeDfuUpdate: GetStatus: status: 0, state: 6
    2011-11-16 18:20:39.163 [2232:1c50]: WinDFU::ProcessUpdateState: status.bState == DFU_STATE_MANIFEST_SYNC
    2011-11-16 18:20:39.163 [2232:1c50]: WinDFU::FinalizeDfuUpdate: GetStatus: status: 0, state: 7
    2011-11-16 18:20:39.163 [2232:1c50]: WinDFU::ProcessUpdateState: status.bState == DFU_STATE_MANIFEST, PollTimeout: 3000
    2011-11-16 18:20:42.163 [2232:1c50]: WinDFU::FinalizeDfuUpdate: GetStatus: status: 0, state: 8
    2011-11-16 18:20:42.163 [2232:1c50]: WinDFU::ProcessUpdateState: status.bState == DFU_STATE_MANIFEST_WAIT_RESET
    2011-11-16 18:20:42.163 [2232:1c50]: WinDFU::ResetDevice: resetting...
    2011-11-16 18:21:02.210 [2232:1c50]: WinDFU::FinalizeDfuUpdate: success
    2011-11-16 18:21:03.491 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 18:21:03.507 [2232:c4c]: WinAMRestore::AddAppleDeviceToDeviceList, old disconnected device connects again
    2011-11-16 18:21:03.757 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 18:21:04.554 [2232:1b88]: amai: tss_submit_job: HttpQueryInfo returned 200
    2011-11-16 18:21:10.882 [2232:1b88]: <DFU Device 0F198478>: production fused device
    2011-11-16 18:21:10.882 [2232:1b88]: unable to open device_map.txt: No such file or directory
    2011-11-16 18:21:10.882 [2232:1b88]: WinDFU::OpenDeviceByPath: \\?\USB#VID_05AC&PID_1227#{B8085869-FEB9-404B-8CB1-1E5C14FA8C54}\0000#cfe11997
    2011-11-16 18:21:12.788 [2232:1b88]: WinDFU::UploadData: EOF, cbRead: 1321
    2011-11-16 18:21:12.804 [2232:1b88]: WinDFU::UploadData: ZLP
    2011-11-16 18:21:12.819 [2232:1b88]: WinDFU::FinalizeDfuUpdate: GetStatus: status: 0, state: 6
    2011-11-16 18:21:12.819 [2232:1b88]: WinDFU::ProcessUpdateState: status.bState == DFU_STATE_MANIFEST_SYNC
    2011-11-16 18:21:12.819 [2232:1b88]: WinDFU::FinalizeDfuUpdate: GetStatus: status: 0, state: 7
    2011-11-16 18:21:12.819 [2232:1b88]: WinDFU::ProcessUpdateState: status.bState == DFU_STATE_MANIFEST, PollTimeout: 3000
    2011-11-16 18:21:15.819 [2232:1b88]: WinDFU::FinalizeDfuUpdate: GetStatus: status: 0, state: 8
    2011-11-16 18:21:15.819 [2232:1b88]: WinDFU::ProcessUpdateState: status.bState == DFU_STATE_MANIFEST_WAIT_RESET
    2011-11-16 18:21:15.819 [2232:1b88]: WinDFU::ResetDevice: resetting...
    2011-11-16 18:21:20.866 [2232:1b88]: WinDFU::FinalizeDfuUpdate: success
    2011-11-16 18:21:21.835 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 18:21:21.835 [2232:c4c]: WinAMRestore::AddAppleDeviceToDeviceList, old disconnected device connects again
    2011-11-16 18:21:21.897 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 18:21:22.054 [2232:1838]: AMDeviceIoControl: GetOverlappedResult failed
    2011-11-16 18:21:22.054 [2232:1838]: AMDeviceIoControl: pipe stall
    2011-11-16 18:21:22.054 [2232:1838]: USBControlTransfer: error 31, usbd status c0000004
    2011-11-16 18:21:22.054 [2232:1838]: command device request for 'getenv radio-error' failed: 2008
    2011-11-16 18:21:22.054 [2232:1838]: unable to open device_map.txt: No such file or directory
    2011-11-16 18:21:22.054 [2232:1838]: <Recovery Mode Device 0F2A7768>: production fused device
    2011-11-16 18:21:24.007 [2232:1838]: AMDeviceIoControl: GetOverlappedResult failed
    2011-11-16 18:21:24.007 [2232:1838]: AMDeviceIoControl: pipe stall
    2011-11-16 18:21:24.007 [2232:1838]: USBControlTransfer: error 31, usbd status c0000004
    2011-11-16 18:21:24.007 [2232:1838]: command device request for 'getenv ramdisk-delay' failed: 2008
    2011-11-16 18:21:38.319 [2232:1344]: fixed TcpWindowSize (64512) can cause restore failure if too large
    2011-11-16 18:21:38.335 [2232:1344]: unable to open device_map.txt: No such file or directory
    2011-11-16 19:21:54.475 [2232:1344]: amai: AMAuthInstallBasebandHandleUpdaterStatus: outputDict is NULL
    2011-11-16 19:21:54.538 [2232:1344]: <Restore Device 0ED73918>: Restore failed (result = 1)
    2011-11-16 19:21:54.647 [2232:8ec]: iTunes: Restore error 1
    2011-11-16 19:22:09.100 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 19:22:09.100 [2232:c4c]: WinAMRestore::AddAppleDeviceToDeviceList, old disconnected device connects again
    2011-11-16 19:22:09.163 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 19:37:25.319 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 19:37:25.335 [2232:c4c]: WinAMRestore::AddAppleDeviceToDeviceList, old disconnected device connects again
    2011-11-16 19:37:25.382 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 19:52:41.679 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    2011-11-16 19:52:41.679 [2232:c4c]: WinAMRestore::AddAppleDeviceToDeviceList, old disconnected device connects again
    2011-11-16 19:52:42.163 [2232:c4c]: AppleDevice::EnumerateHubPorts: DoesDriverNameMatchDeviceID failed
    I also get a system crash reporter key of c392e98c929aa0b351037af00d75d08aeadc843c    bug type 110
    incident identifier  8ff84a87

    Errors 3000-3999 (3004, 3013, 3014, 3018, 3164, 3194, and so on): Error codes in the 3000 range generally mean that iTunes cannot contact the update server (gs.apple.com) on ports 80 or 443.
    Update to the latest version of iTunes.
    Verify the computer's date and time are accurate.
    Check that your security or firewall software is not interfering with ports 80 or 443, or with the server gs.apple.com.
    Follow Troubleshooting security software. Often, uninstalling third-party security software will resolve these errors.
    An entry in your hosts file may be redirecting requests to gs.apple.com (see "Unable to contact the iOS software update server gs.apple.com" above).
    Internet proxy settings can cause this issue. If you are using a proxy, try without using one.
    Test restoring while connected to a known-good network.

  • What is it about InDesign CS5 that someone would get this error message?

    Hi,
    What is is about the .swf file that is generated from the InDesign CS5 interactive workspace that someone would get the following error message when they go to view the site I created?
    "This file may contain newer information that this viewer can support. It may not open or display correctly. Adobe suggests that you upgrade to the latest versions of our Acrobat products blah blah blah."
    The site doesn't seem to work for four Mac users, but works fine for at least one PC user.
    I'm trying to figure out how to save the .swf file down to Flash Player 9, which I've done by exporting a .fla file, then adjusting the Publish setting in Flash CS5. But that throws a wrench into the works...all the animations go haywire by continuously looping and the scale of all the text elements on the first page is much larger than it should be.
    Thanks, Steve

    John Black3 wrote:
    Many of my songs in my iTunes Library no longer play.  I get this error message: "The song xxx could not be used because the original file could not be found. Would you like to locate it?
    this usually happens when a user moves or deletes files in the finder - a sure way to upset iTunes.
    did you move or delete files in the finder ?
    I cannot locate the song.
    if you let iTunes manage your library, all your content will be in <MacintoshHD>/users/<yourname>/music/iTunes/iTunes music (or media)/music. did you look there ? tried a spotlight search ?
    if the files are really gone, and have been purchased from the iTunes store, see Downloading past purchases from the App Store, iBookstore, and iTunes Store.

  • I'm trying to install itunes on my new computer and I keep getting the error message about Windows Installer. It does not show up under "Programs".

    I'm trying to install itunes on my new computer and I keep getting the error message about Windows Installer. I've seen the other posts regarding this issue, however, I am unable to even get it to load for it to show up under "Programs".

    Repair your Apple software update.
    Go to START/ALL PROGRAMS/Apple Software Update. If it offers you a newer version of Apple Software Update, do it but Deselect any other software offered at the same time. Once done, try another iTunes install
    If you don't find ASU, go to Control Panel:
    START > CONTROL PANEL > Programs n Features / highlight ASU and click CHANGE then REPAIR,

  • Just updated to IOS 7 and two issues:  First when I connect my iPhone to my computer I get this error message:itunes was unable to provider data from sync services".

    Just updated to IOS 7 and two issues: 
    First when I connect my iPhone to my computer I get this error message:itunes was unable to provider data from sync services".  I'm not sure what this really means...
    The second issue is when I try to select "Manually Manage Music"
         The iPhone "My iPhone" is synced with another iTunes libary on "MY-PC".  Do you want to erase this iPhone and sync with this iTunes library?  An iPhone can be synced with only one iTunes library at a time.  Erasing and syncing replaces the contents of this iPhone with the contents of this iTunes library."
    So... I don't want to do that, but I do what to be able to Manage my music.  I'm not sure what it means by being synced to another iTunes unless it means to an older version of itunes?
    Anyone have any ideas?

    I cannot address the sync services error right now, but the error that you receive when you change from sync to manually manage music is what happens when you change. Once you change to manually manage music, it erases all of the music and will only put the music that you want on the phone, content that you manually drag over to it. See if this support document helps you out. http://support.apple.com/kb/HT1535

  • I keep getting this error message when i try to install the latest version of itunes, the program can't start because MSVCR80.dll is missing from your computer. try reinstalling the program to fix this problem??

    I am having trouble reinstalling my Itunes on my desktop which uses Windows 7 and I can download it but once it's complete i keep getting this error message...The program can't start because MSVCR80.dll is missing from your computer. Try reinstalling the program to fix this problem. Please help me.

    Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
    Remove all of these items in the following order:
    iTunes
    Apple Software Update
    Apple Mobile Device Support (if this won't uninstall move on to the next item)
    Bonjour
    Apple Application Support
    Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
    The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
    Please note:
    Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
    HT1925: Removing and Reinstalling iTunes for Windows XP
    HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
    tt2

  • HT1338 when I try to print, I get this error message "Communications Failure: The computer is no longer able to communicate with your printer. " followed by intruictions to turn off the printer and check connections etc. I am using an HP Officejet 6500 70

    when I try to print, I get this error message "Communications Failure: The computer is no longer able to communicate with your printer. " followed by intruictions to turn off the printer and check connections etc. I am using an HP Officejet 6500 709e, connecter wirelessly

    I'm using a mac (OS X - snow leopord) and am printing over the network (wirelessly).
    HP Photosmart Premium Fax All in One - C410a
    I was only able to print one page and then both my printer and my computer would display an error message about the printer's inability to print.  Since then I've been able to resolve my specific problem.
    I
    1. uninstalled HP from my computer (checked to ensure that my printer was no longer visible in my printers and the HP Utility software was nowhere to be found), 
    2. grabbed the software/driver update from Aug, 2010,
    3. installed the Aug, 2010 update, and my problems seem to have been fixed.
    This is where I got my 2010 update from (obviously you should get the driver/software applicable to your OS and specific printer):
    http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=mp-85379-1&cc=us&dlc=en&lc=en&...

  • I have downloaded Adobe Photoshop digitally but when i activated adobe I keep getting this error message Adobe Premiere Elements.exe - NO DISK. There is no disk in the drive. Please insert a disk into drive/device/harddisk/dr1

    I have downloaded Adobe Photoshop digitally but when I activated adobe I keep getting this error message Adobe Premiere.exe - NO DISK - There is no disk in the drive. Please insert a disk into drive/device/harddisk/DR1

    It sounds like you downloaded the wrong application, namely Adobe Premiere Elements.
    If you meant Adobe Photoshop Elements, you're in the wrong forum.  This is not the Elements forum.
    Here's the link to the forum you want:
    https://forums.adobe.com/community/photoshop_elements/content
    If you mean Photoshop proper, since you are posting in the Photoshop forum, give version details and your system specs.
    BOILERPLATE TEXT:
    Note that this is boilerplate text.
    If you give complete and detailed information about your setup and the issue at hand,
    such as your platform (Mac or Win),
    exact versions of your OS, of Photoshop (not just "CS6", but something like CS6v.13.0.6) and of Bridge,
    your settings in Photoshop > Preference > Performance
    the type of file you were working on,
    machine specs, such as total installed RAM, scratch file HDs, total available HD space, video card specs, including total VRAM installed,
    what troubleshooting steps you have taken so far,
    what error message(s) you receive,
    if having issues opening raw files also the exact camera make and model that generated them,
    if you're having printing issues, indicate the exact make and model of your printer, paper size, image dimensions in pixels (so many pixels wide by so many pixels high). if going through a RIP, specify that too.
    etc.,
    someone may be able to help you (not necessarily this poster, who is not a Windows user).
    a screen shot of your settings or of the image could be very helpful too.
    Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
    http://forums.adobe.com/thread/419981?tstart=0
    Thanks!

  • Does anyone with a PC/windows get this error message?,,,,,,

    I get this error message every time I open iTunes. "iTunes.exe has been set to run in compatibility mode for an older Version of Windows" It's the first thing that comes up. Although it doesn't affect the application from starting...it's really annoying. I've checked the compatibility mode and it's set off and it's current. When I have my computer check it on it's own it resets it and then I can't open iTunes at all. Any computer genius out there know why this is happening and how to fix it? I've also have installed iTunes about 100 times hoping it would fix the problem but it doesn't.

    Although it doesn't affect the application from starting...it's really annoying. I've checked the compatibility mode and it's set off and it's current.
    Doublechecking ... are any of the boxes in the Compatibility mode tab for iTunes checked at the moment? If so, uncheck them all and see if iTunes will start properly again.
    If the iTunes compatibility tab has no checked boxes whatsoever, also check to make sure that your QuickTimePlayer.exe compatibility tab has no checked boxes whatsoever.
    If nothing is checked for either iTunes or QuickTime, you may be having trouble with an errant registry entry.
    If so, RandomBehavior's post may be of some assistance:
    http://discussions.apple.com/message.jspa?messageID=10397771#10397771

  • TS3899 "cannot get mail" in iphone5 suddenly. been using iphone to check 2 email accounts for months now, one is gmail and not troubled. the other is thunderbird and i get this error message now. no settings have been changed or anything! ideas?

    hey all, I have been getting the "cannot get mail" error message on my iphone5 suddenly.
    ive been using iphone to check two email accounts for months now, one is gmail and not troubled. the other is mail from thunderbird and i get this error message now saying it is not responding. no settings have been changed or anything, it just suddenly stopped receiving mail on my device as of Tuesday afternoon.
    Does anyone have iny ideas about why? i have yet to update to the new OS7 yet, could that be it?

    'The installer has insufficient privileges to modify this file C:\Program Files (x86)\Common Files\Apple\Apple Application Support\Web kit.resources\inspector\Images\Spinner Inactive Selected.gif.'
    That one's consistent with disk/file damage. The first thing I'd try with that is running a disk check (chkdsk) over your C drive.
    XP instructions in the following document: How to perform disk error checking in Windows XP
    Vista instructions in the following document: Check your hard disk for errors
    Windows 7 instructions in the following document: How to use CHKDSK (Check Disk)
    Select both Automatically fix file system errors and Scan for and attempt recovery of bad sectors, or use chkdsk /r (depending on which way you decide to go about doing this). You'll almost certainly have to schedule the chkdsk to run on startup. The scan should take quite a while ... if it quits after a few minutes or seconds, something's interfering with the scan.
    Does the chkdsk find/repair any damage? If so, can you get an install to go through properly afterwards?

  • TS1368 I keep getting this error message and can't open the iTunes store. I've reinstalled iT a half dozen times with no results. "Registry settings used by the iT drivers for importing & burning CDs & DVDs are missing" reinstall iTunes

    I can't open the iTunes store and keep getting this error message. "Registry settings used by the iT drivers for importing & burning CDs & DVDs are missing. Reinstall iTunes." I've reinstalled iT a half dozen times with no results.

    You might have two different things going on at once here.
    Starting with the registry settings message.
    I'd start with the following document, with one modification. At step 12 after typing GEARAspiWDM press the Enter/Return key once prior to clicking OK. (Pressing Return adds a carriage return in the field and is important.)
    iTunes for Windows: "Registry settings" warning when opening iTunes

  • How received the following error message:  iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 998).  I did what was requested and reinstalled iTunes, but still get this error message.  Help!

    My Toshiba laptop just recently started showing the the following error message when I try to open iTunes: " iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 998)".  I did what was requested and reinstalled iTunes, but still get this error message.  Help!

    b noir I never got any message about an entry point
    Many thanks. If we're looking at a "naked" Error 7, I'd start with box two in the following user tip:
    Troubleshooting issues with iTunes for Windows updates

  • I get this error message when trying to open a catalog.

    I get this error message when trying to open a catalog. "error message: unexpected error opening catalog"

    Hi Ian.
    Thank you for answering. But I find no such file in Preferences. I think Lightroom freezes before making the preference file. Other solutions?
    Best wishes,
    Magne
    6. okt. 2012 kl. 11:43 skrev Ian Lyons <[email protected]>:
    Re: Help! Lightroom freezes after installing.
    created by Ian Lyons in Photoshop Lightroom - View the full discussion
    Have you tried trashing the Lr preference file? More details of location at http://forums.adobe.com/thread/358041?tstart=0
    Please note that the Adobe Forums do not accept email attachments. If you want to embed a screen image in your message please visit the thread in the forum to embed the image at http://forums.adobe.com/message/4753899#4753899
    Replies to this message go to everyone subscribed to this thread, not directly to the person who posted the message. To post a reply, either reply to this email or visit the message page: http://forums.adobe.com/message/4753899#4753899
    To unsubscribe from this thread, please visit the message page at http://forums.adobe.com/message/4753899#4753899. In the Actions box on the right, click the Stop Email Notifications link.
    Start a new discussion in Photoshop Lightroom by email or at Adobe Community
    For more information about maintaining your forum email notifications please go to http://forums.adobe.com/message/2936746#2936746.

Maybe you are looking for

  • Creating crop marks in pages

    Lo all. I'm using pages to make a 24 page booklet. To send this to printers they all require 'crop marks' and 'bleed'. Is there any way of creating crop marks in pages? I can't find any way of doing itbut it seems staggering that it wouldn't be able

  • Changing JPanels at runtime

    Hi guys, I'm writing a turorial apllication. I want to break down the information into JPanels, however I can't seem to swap between JPanels at runtime. I've tried calling validate and revalidate and then repaint... but I cant seem to get it working.

  • OpenGL Error Code 7

    I just bought a EVGA GTX 470 so I could use the GPU Acceleration in Adobe. Soon after starting to edit some video, I get this error: Your hardware configuration does not meet minimum specifications needed to run the application. The application must

  • Problems setting the charset encoding via jdbc

    Dear list, I would like to know if/how its possible to set the character encoding via the jdbc string, with the oracle thin driver client (classes12.jar). Microsoft SQLserver for example supports the addition of a charset="utf-8" for example in the j

  • Allowing viewer to zoom in and out

    I am creating a historical timeline and I want the viewer to be able to zoom in and out from the timeline. How do I do this? Thanks