Swaping between white-on-black and black-on-white

I really like using the white-on-black setting in Universal Access, however if I want to watch a video or see a picture normally I have to switch back to black-on-white. Is there a way where I could quickly switch back and forth between the two settings without having to reopen system preferences and select which setting I want? I've seen that you can create scripts or use terminal to switch system preference settings, but I don't have very much experience with either of these.
It would be great if someone could hep me out with this. Thanks.

I have a situation where the PowerBook display and the 17" external Studio Display are inversely correlated.
(eg. one is black on white and the other is white on black). Using the Universal Access keyboard shortcut of control/option/command/8 just toggles them back n forth switching the settings between displays.
How do I change just ONE of the displays so that they both have the same settings???
I've tried all permeations of UA settings, disconnect external display, detect displays with display disconnected, re-boot again, and no avail.
-GMC

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It ran great. But, I wanted to erase the hard drive and reinstall the OS system before giving it to a relative.
I found that although the optical drive would read and write to normal cds and dvds, the machine would NOT boot from the grey start-up disks I had on hand. ( I have two imacs, and I tried both sets of dvds without success.)
I zapped the PRAM, and used disk utilities via firewire connection from my other 20" imac to check the hardrive and make repairs. Disk Utilities couldn't find any problems. So, using disk utilities from the other imac, I erased the first imac's harddrive and then used the install dvds on the second imac to install the original OS to the hard drive of the first imac.
(looking on the hard drive of the first imac, I can see all the contents)
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The screen on my ipod touch is white all over and black in the upper right hand corner only with color dots and lines run to the left hand side but stop in the middle. how do i fix it?

right now it is the middle of april and i bought the ipod at the beging of Agust the year befor so it still has not been a year. currently it is thursday and the screen changed to the white and black corner on the monday earlier in the week (so 4 days ago). i had just broken up with my gril friend and we were fighting. in anger i through my ipod at the wall. i was aiming for my pillow on my bed so it would hit something soft but i missed and it hit the hard concrete wall in my room. when i looked at my ipod it had turn itself off and when turn on the screen was white with a little black in one corner. i have tryed to restart it by holding down the power and home button till it restarted but the screen only got brighter and then eventually went back the the brightness it was before and turn off. i can still turn the screen on but cant unlock. i know it is still working cause my alram still goes off in the morning. the ipod is a 4th generation ipod touch 16 GB memory and is black. can this be fixed at home on my own or do i have to take it in to apple. can apple even fix it or is my ipod past the point of repair. any advice would be nice. thanks in advance.

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I have a T61 which has Intel graphic card. It is seven years old and at times has a noisy fan.
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> the screen is very dark but with a close look, it is still possible (but very hard) to read it.
That sounds like a defective CCFL backlight or inverter.
>- problem with bulb inside the screen (maybe the cause, but somehow decided for the last few minutes to working fine)
A CCFL is essentially a high intensity fluorescent bulb. One failure mode is flickering.
>- problem with inverter (don't know yet what this part it)
The inverter is a power supply that converts the low voltage DC used in the rest of the ThinkPad to high voltage to drive the CCFL. I would expect that to fail catastrophically rather than cause flickering.
What to do?
CCFLs backlights are relatively inexpensive ($10 to $15 on eBay) but they can be difficult to replace because they're delicate. You may prefer to replace the entire LCD panel assembly or even the entire top cover assembly (which also includes the inverter card.)
The Hardware Maintenance Manual for the T61 provides detailed instructions for doing this sort of stuff if you'd like to see what's involved and decide what you feel comfortable doing.
Cheers... Dorian Hausman
X1C2, TPT2, T430s, SL500, X61s, T60p, A21p, 770, 760ED... 5160, 5150... S360/30

Is there any differences between black and white ipod touch ?? only the color or there are hardware differences?

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You're welcome.
What?
Sorry, but no. The parts are identical with the only difference being a white housing or a black housing.

Swaping between white-on-black and black-on-white

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