Screen flashing between grey and background, dock not showing

I don't know how this happened, but I recently upgraded to Mountain Lion: as soon as I'd logged in, the Dock dissapeared, and the background started flashing between grey and my background. The only way for me to open anything is through Spotlight.
Whenever I try to make an app fullscreen, it glitches halfway through: half the screen is grey, and half the screen flashing. Opening Notification Centre flashes between grey and open and background and closed. Mission Control won't open, and CMD-tab fails to do anything.
Upon inspection in Activity Monitor, there is an abnormal amount of processes named "com.apple.dock.extra": closing them does nothing. One process exists and then doesn't in time to the background flash, and the amount of "dock.extra"s grows and shrinks from 3 to 10.
Can anyone help me with this strange problem?

Open Spotlight and type Terminal. Select the Terminal application.
Type 'sudo rm -rf ~/Library/Dock'. Ensure it looks exactly like that (minus the quotes) and hit enter. Type your password if you have one. Then, type the command 'killall Dock' and hit enter. The dock will terminate and restart, and it will hopefully be returned to its previous state.

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This question was solved.
View Solution.

Hi @bdfloyd ,
The unfortunate thing is I can not answer a Microsoft practice or when they will remove something.
Sorry.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

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Sounds like you have assistive services activated (There is a three finger short cut you may have in accidentally pressed)
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x64
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Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2, HyperThreading
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Logical processor count: 4
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Memory used by Photoshop: 60 %
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gpu[0].glGetProgramivARB[GL_FRAGMENT_PROGRAM_ARB][GL_MAX_PROGRAM_INSTRUCTIONS_ARB]=[1447]
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gpu[0].glGetIntegerv[GL_MAX_VARYING_FLOATS]=[64]
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gpu[0].extension[AIF::OGL::GL_ARB_FRAGMENT_PROGRAM]=1
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gpu[0].extension[AIF::OGL::GL_ARB_FRAGMENT_SHADER]=1
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Application folder: C:\Program Files\Adobe\Adobe Photoshop CC (64 Bit)\
Temporary file path: C:\Users\Trisha\AppData\Local\Temp\
Photoshop scratch has async I/O enabled
Scratch volume(s):
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Required Plug-ins folder: C:\Program Files\Adobe\Adobe Photoshop CC (64
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Optional and third party plug-ins: NONE
Plug-ins that failed to load: NONE
Flash:
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   Kuler
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Installed TWAIN devices: NONE
On Tue, Feb 24, 2015 at 10:29 PM, Benjamin Root Photography <

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Any ideas why the change between 5.8 and 5.9 woudl cause problems?
The current app-driver that we are using is compiled using Solaris 5.6,
if possible we would like to have use of a later version, which is compiled using Solaris 5.9, do you think this will probably solve our problem?
Thanks
Paul

Does this have anything to do with Java RMI? or with Java come to think of it?

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