Question : Stupidly activated "Log on using dial-up connection' and cant  log in because i dont even have a dial-up connection

ive tried safe mode and all the others after hitting f8 but cant get past this logon screen. (i was messing around with x-setup while watching tv and wasnt paying attention). is there a way to load a previous version of whatever it is that keeps info like that somewhere somehow ie: can i get to a command prompt somehow and type something in thatll fix this mess im in (im sending this from a dusty old laptop)?
im running win2k sp2 on a cable modem

thanks

Answer : Stupidly activated "Log on using dial-up connection' and cant  log in because i dont even have a dial-up connection

Note the following approcah will not replace any system files.

Can you boot to your Win2000 CD? If so then when it finally boots At the "Welcome to Setup" screen, press F10, or press R to repair, and then C to start the Recovery Console this will allow you to use the command line. From here do something like the following. Or if the file system is FAT32 you can use a Win98 bootdisk to do this. www.bootdisk.com

COPY /Y C:\WINNT\repair\RegBack\TheParticularHive C:\WINNT\system32\config\

This will replace the registry hive to the last time that hive was bacped up. Hopefully you didn't backup the registry at the time the problems started to happen.

Following is a list of the files that are the registry hives. I would suggest starting with the SYSTEM hive and then reboot and if the problem still persists do the SOFTWARE hive next. Note these files don't have a file extension on them

DEFAULT
SAM
SECURITY
SOFTWARE
SYSTEM

For the SYSTEM hive you could try the following before doing the copy method.

ren c:\windows\system32\config\SYSTEM SYSTEM.bak
ren c:\windows\system32\config\SYSTEM.alt SYSTEM

I would suggest to first BACKUP these hives from the C:\WINNT\system32\config\ to folder of your making or choice just don't back them up to the C:\WINNT\repair\RegBack\ folder.  

You will probably need to reapply any services patches that you have previously installed.