My login screen is blank/solid monochromatic. I can't change it...

Ever since I started messing with secrets pref pan, it's been nothing but trouble. It's supposed to me a GUI too to most common/popular command line hacks. So far it's been 0 for 2.
DS_Store files still propagated to Windows Shares despite hack... think I resolved that with doing hack manually, but what's really bothering me is my login screen. Ever since I changed it to another .png in Secrets it's been blank, a blue/grey hue solid color. Since then I've tried replacing the library file directly with another file, and no go.
I think the location where it looks has changed. I tried doing it the manual way here:
http://osxdaily.com/2007/02/22/customize-the-mac-os-x-login-screen/
but no go... I can't even see the spacey background anymore. Can anyone help me to get back to square 1?

used terminal command: sudo defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture "/Users/your_user/Public/myloginwindow.jpg" ommitted 'your_user' in lieu of my username and pic name. Ensured pic is 1280x800 .jpg (does that even make a difference btw); put it in my user public folder; ensured setting took in com.apple.loginwindow.plist; it did; Reboot. Still solid blue background. Sigh... what could be causing this?
BTW, all secrets supposedly does is change this file location, same as sudo command in bash. It's possible the 1st time I did it the pic res didn't match my screen res, should that matter? At worst, I'd think it wouldn't work, but not cause this...
Message was edited by: hakujin

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Login screen is blank

Once my screen saver begins and I then wish to use my laptop again i tap the mouse pad and my screen is blank. As i move my mouse it slowly uncovers my screen pixel by pixel until i am able to enter my password and login. Any info provided would be great.

used terminal command: sudo defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture "/Users/your_user/Public/myloginwindow.jpg" ommitted 'your_user' in lieu of my username and pic name. Ensured pic is 1280x800 .jpg (does that even make a difference btw); put it in my user public folder; ensured setting took in com.apple.loginwindow.plist; it did; Reboot. Still solid blue background. Sigh... what could be causing this?
BTW, all secrets supposedly does is change this file location, same as sudo command in bash. It's possible the 1st time I did it the pic res didn't match my screen res, should that matter? At worst, I'd think it wouldn't work, but not cause this...
Message was edited by: hakujin

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Hi
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I don't have an answer but, to point out the obvious, the other way that you can try to do this is to reinstall OS X, as the support article notes. It's a pain but if you followed all the other instructions, it may be your only recourse.
Having lived in Beijing in the mid-90s, it's great to hear that you can actually buy a Mac. Back then if you said Apple, people replied "Huh?" Mac users were an extreme oddity and trying to do anything--like connecting with a network--was impossibly trying.
G4 933 mhz Quicksilver Mac OS X (10.4.8) Wacom Intuos 2 tablet; Epson 2400 Photo; HP Deskjet 6840; LaCie 80gb D2 FWDV

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My login screen is blank/solid monochromatic. I can't change it...

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