Apple full size USB keyboard - ESC, tilde, tab, & caps lock not working

I was logging into my email account yesterday & went to tab from the username to password fields & the tab key is all of a sudden not working. It was working the day before, but not now. Upon further checking, the ESC, tilde, & caps lock buttons don't work either. So ESC, tilde, tab, & caps lock are all not working now. (???)
I have the white w/ clear base full size USB wired keyboard. When I unplug & plug back in the USB cord or shut down & restart, the light on the caps lock key does come on as it should.
I have tried many of the various fixes (Universal Access, etc) that I've found online, but to no avail.
No spills or damage & I can't imagine that they all 4 would work one day & then be too dirty to just not work the next.
Any ideas to resolve???

All on the left side of the keyboard - might be a circuit board issue. But try deep cleaning that side of the keyboard. I have used a vacuum cleaner with a sock over the nozzle. (Keys do sometimes come loose - the sock keeps them from being sucked into the vacuum.)

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Hi,
I am using numeric keypad(wired one) with my iMac, suddenly, when i switched on the machine in evening and tried tap the CAPS key and it doesn't light up but the caps lock is working perfectly fine.
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My entire work in on Mac and on the application i used to work on, i need to enter the password at almost 4 locations and with out knowing that CAPS lock is on or off, really taking a lot of time.
Can any body suggest that the problem is with the LED Bulb or what? or this a manufacturing fault? or i need to go for a new keyboard?
Your comments are really appreciated in this regard.
Regards,
MacLover

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USB Hi-Speed Bus:
Host Controller Location:          Built-in USB
Host Controller Driver:          AppleUSBEHCI
PCI Device ID:          0x1c2d
PCI Revision ID:          0x0005
PCI Vendor ID:          0x8086
Bus Number:          0xfa
FaceTime HD Camera (Built-in):
Product ID:          0x8509
Vendor ID:          0x05ac (Apple Inc.)
Version:           5.16
Serial Number:          DJHBAJ06VRDH7FL0
Speed:          Up to 480 Mb/sec
Manufacturer:          Apple Inc.
Location ID:          0xfa200000 / 3
Current Available (mA):          500
Current Required (mA):          500
Hub:
Product ID:          0x2513
Vendor ID:          0x0424 (SMSC)
Version:           b.b3
Speed:          Up to 480 Mb/sec
Location ID:          0xfa100000 / 2
Current Available (mA):          500
Current Required (mA):          2
Microsoft® Nano Transceiver v2.0:
Product ID:          0x0745
Vendor ID:          0x045e (Microsoft Corporation)
Version:           6.34
Speed:          Up to 12 Mb/sec
Manufacturer:          Microsoft
Location ID:          0xfa130000 / 6
Current Available (mA):          500
Current Required (mA):          100
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Product ID:          0x0252
Vendor ID:          0x05ac (Apple Inc.)
Version:           1.18
Speed:          Up to 12 Mb/sec
Manufacturer:          Apple Inc.
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Current Required (mA):          40
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This page contains technical information that might be useful when you're trying to solve a problem. If you are looking for answers to common questions about Firefox, check out our support website.
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This is the third time of writing this on your Apple Support Communities!
Not with your current user id.
Far too much uneccesary information in your post, which only confuses things, a vast amount!
Let's start with iTunes.
Have you updated iTunes to 11.1.5, because the previous version did appear to have an issue about seeing iPods?
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Once you have doen those two things, check to see if the iPod is seen by iTunes.
chicx wrote:
By the way, what does IOS mean? (I thought IO stood for operating system, but am flummoxed by the S on the end.
Really?
OS stands for Operating System. (In computer speak, IO means Input/Output.)
iOS originally stood for iPhone Operating System, but it now refers to the iPod Touch and iPhone. The iPod Classic, which you have listed in your profile as your iPod, does not use iOS.
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I have just got my first apple device, iphone 3G S. After iserting sim it does not work, cant go beyond first screen. How to activate? I am in Delhi, India.

Hi,
I have just got my first apple device, iphone 3G S. After iserting sim it does not work, cant go beyond first screen. How to activate it? I am in Delhi, India.Any suggestions.
Satish

would be best if you can download the guide here
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HT201343 I bought my macbook pro on August 2011 at an apple store, with the Intel i7. However mirrorring in not working with two of my Apple TVs. These Apple TVs are 2nd and third generation loaded with the latest software. Can someone help?

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Several Apple Articles Regarding AirPlay
Apple TV (2nd and 3rd gen)- How to use AirPlay Mirroring
How to set up and configure AirPort Express for AirPlay and iTunes
About AirPlay Mirroring in OS X Mountain Lion
iTunes 10- About playing music with AirPlay
Troubleshooting AirPlay and AirPlay Mirroring
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