My return and shift key stopping working

my return and shift key stopping working. It wont go to the next line or function as an enter.
Now, most of the time it wont do anything but if you push it several times it will type a 0p or /- or control volume the instead. I checked the keyboard setting and voicecontrol and reset it to default and updated software for system but no resolve. How do I fix this?

Hi -- I have this problem too. I cleaned out the keyboard, did an SMC reset, a PRAM reset, and also followed the steps I could follow from this article, linked to in the answer to another question:
http://support.apple.com/kb/ts1381
no luck with any of it. Could we please have some advice targetted at the specific problem of nonfunctional shift and return keys on a MacBook Air?
In the meantime I'm using only the left-side shift and have downloaded and installed KeyRemap4MacBook and remapped my backslash key so it issues the "return" command. A clunky work around but it seems to do the trick, at least.

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http://forums.adobe.com/message/2657882#2657882

I can edit on Premiere Pro 6 files, but after a dozen keystrokes, the space bar and cursor keys stop working while the save function works

I can edit on Premiere Pro 6 files, but after a dozen keystrokes, the space bar and cursor keys stop working while the save function, render workspace function, export file are still operational. How can I fix it so I may complete my assignment?
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Still getting software freezes but found a way to mitigate for the mean time.
Upon launching Adobe Premiere Pro, hit CTRL-ALT-DEL to launch TaskManager as well.
You will want to highlight Adobe QT32 Server.exe
Right click and select "End Process Tree"
You will get considerable stability in the program, long enough to get timing of cuts done. Be sure to save often.
If the program freezes, do not hit Save. You definitely want to avoid saving the corruption into your TimeLine
CTRL-ALT-DEL to relaunch the TaskManager and highlight Adobe Premiere Pro.exe
Right-click to "End Process"
No need to reboot the whole system; just launch Premiere Pro again and continue with the session. Note that your work reverted to Last Save.
Hope this helps until the bug is fixed.

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For the sake of this post, please consider my skill level to be high. (In other words, I would be thankful for people trying to help with "Replace the keyboard", but I have about a dozen keyboards, all of which I have tried, and all of which work on other laptops. Additionally, if you have just a theoretical solution, I'm definitely open to hearing it. Also, if a Toshiba tech would like to reply, I would very much appreciate it!)

Hi, thank you for your help.
Some motherboards were not in chassis when I got them. Is there a place the PSAAxx model number would be written on the boards?
Four PSAA8U (Two A105-S4334 and Two A105-S4014) - Intel Chipset, fingerprint reader. Tried BIOS Versions 1.40, 1.70, 2.00, 5.10, 5.60, 5.90, and 6.00. Shift keys do not work on either one.
Two PSAA2U (A105-S2091 and A105-S2031) - ATi Chipset. BIOS versions 1.50, 1.80, and 2.30. Keyboard works.
Another PSAA8U (A105-S4184) - Intel Chipset, no fingerprint reader. BIOS version 6.00. Keyboard works.
I noticed that so far all of the models with fingerprint readers have the problem. All of the ATi Chipset boards are working fine, but they have significant processor limits. I am in the middle of updating the BIOS in another Intel one using a Crisis Rescue Disc, so after that finishes I will try disconnecting the fingerprint reader to see if it has an effect.
I don't think the keyboard controller is faulty, because these boards all failed on the same day. I have tried updating the BIOS using WinPhlash, Phlash16 in DOS, the install CD, and a Crisis Recovery Disk. I set the defaults in the BIOS almost every time, and I also have tried holding the power button for 60 seconds with the power cord unplugged and the battery removed (as some people have suggested.)
The shift keys don't work in DOS, Linux, Windows, or even in the BIOS. I test it in the BIOS by using Tab to cycle through the fields in time of day, then Shift-Tab to cycle backwards. This works with a USB keyboard, and it also works on the ATi chipset models and the Intel chipset models that are still working.
Thank you for your reply. (-:

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Everything was fine, suddenly, my space key and delete key stopped working.
I tryed to restart the computer (MacBook Pro), but nothing. Sometimes, when i press the space key, It works for some clicks.
Tks

Thanks Grant,
appreciate the info.
I did try that, and switching the power cord (Which was a long shot) and still not luck.
Pretty facinating issue.
I am going ot continue to look through the forums and see if I find anything.
Thanks again!
If anyone else has had this issue with an older MacPro - I would love ot hear it.
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A few days ago my mouse started behaving erratically all of a sudden. It would move by itself, click apps, and switch tabs rapidly all on its own. I've had this computer for over 2 years and this has never happened before. Restarting and rebooting into safe mode didn't work, but one user suggested a PRAM reset and that fixed the mouse problem. However, my enter and shift key on the right side do not work now (this is much less annoying than the mouse problem, but still very inconvenient!). Restarting the computer and doing another PRAM reset doesn't work unfortunately. I also used the keyboard viewer to confirm that all but those two keys work. I don't think the issue is with keyboard lint because both keys worked fine before I tried the reset. Booting up in safe mode also doesn't fix the problem. It would be great if I could find a way to fix this here since I won't be able to go to an Apple genius bar until December!

Hello sandi3s,
The troubleshooting detailed below may help restore functionality to your MacBook Pro's keyboard.
Some keys don't work as expected
From the Apple menu, choose System Preferences.
From the View menu, choose Speech.
Click the Text to Speech tab.
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Click the Accessibilty or Universal Access pane in System Preferences, then click the Keyboard tab.
Make sure that Slow Keys is turned off. With Slow Keys on, you need to press a key for a longer period of time for it to be recognized.
In the Accessibilty or Universal Access pane, click the Mouse tab, and make sure Mouse Keys is turned off. With Mouse Keys enabled, you cannot use the Numeric Keypad to enter numbers--instead the keypad moves the pointer (cursor). (There is an option to enable Mouse Keys with five presses of the Option key; you may want to turn that option off to avoid accidentally enabling it.) If Mouse Keys is enabled and you are using a keyboard with no numeric keypad or Num Lock function, see Unable to type while Mouse Keys is enabled in Mac OS X.
If the function keys on the top row of the keyboard are not working as expected, see Mac OS X: How to change the behavior of function keys.
If the issue persists, use Keyboard Viewer to help isolate the issue:Start from the Mac OS X Install Disc, choose Terminal from the Utilities menu and test the keys which were previously not working. If the keys work while started from the Install disc, then the keyboard itself is working correctly. Use How to troubleshoot a software issue to isolate the software issue that may be causing the keys to not respond.
Click the Language & Text pane (Mac OS X v10.6) or International pane (Mac OS X v10.5.8 or earlier) in System Preferences.
Click the Input Sources tab (or Input Menu tab in Mac OS X 10.5.8 or earlier).
Click the Keyboard & Character Viewer "On" checkbox to select it (click the Keyboard Viewer "On" checkbox in Mac OS X 10.5.8 or earlier).
From the Input (flag) menu, choose Show Keyboard Viewer.
If the keyboard is connected and detected by OS X, the keys you type will highlight in the Keyboard Viewer window. Open TextEdit (or any text application), and try to type something using the keys that were previously not responding to see if they highlight in Keyboard Viewer.
One or more keys on the keyboard do not respond
http://support.apple.com/kb/TS1381
Cheers,
Allen

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Hello,
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What is your current situation?
Have you tried to restart Windows Explorer through task manager?
If the above is still not going to work. Run the following command:
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Dism /Online /Cleanup-Image /RestoreHealth;
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However they work at random times..
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I had a theory on this one, having seen several posts like yours. But it's only a theory.
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Sounds like you'll have to, then...
"Try Disk Utility
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Marco,
I've been having intermittent left shift key problems for several months. My laptop is now 3 days out of Warranty, Apple web site says so. Anyway, the only reliable fix I've found is to do a re-boot. I can also (sometimes) get reliable shifting if I slide my finger closer to the outer edge - meaning, no shift if pressed on one side of the key, sometimes shift on the other side.
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My return and shift key stopping working

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