Mac will not go past login screen

[bryak]

i know what i did, i just don't know how to undo it.

I have been having glitchy issues with Snow Leopard, and found out that it is my 3G dongle causing it. So I took the file from this link:

http://www.davidglover.org/2009/09/t-mobile-usb-stick-120-zte-mf626-on-snow-leopard.html

The file was libcurl.4.dylib and I put it in the /usr/lib folder.

Now I can't get past the login screen. If I CMD-S to terminal, I don't know what to do from there. I hope the old libcurl.4.dylib is in the trash, I can just copy and paste it to /usr/lib and go back to before.

I don't know Mac terminal commands to save my life.

I also have a Time Capsule, so if I can just restore an old backup from cmd-s, i will.

please help. i'm in nicaragua, the nearest Mac repair is three hours away, and anything they do requires two weeks.

thanks!

 

[jbarley]

Try restarting while pressing and holding the shift key, if it starts it will be in "Safe Mode", and may allow you to correct your misdeeds.

edit:
you should also be able to start from your install DVD and then do a Time Machine restore.