Allright, I'm trying to install Puppy Linux 4.2.1 on an IBM Thinkpad 600, but it doesn't seem to want to boot from a cd.
I started the laptop with the Puppy CD in the tray, and I made sure my BIOS settings were to boot from CD first. I restarted it, and when it seemed like it was going to boot from CD, it just came up to a black screen, and all it said was: "ISOLINUX 3.63 2008-04-10"

I let it sit for at least 15 minutes, and it did nothing, so I just shut down.

Any ideas on what's wrong? I've installed linux before on this laptop. I just wiped the hard drive because I wasn't sure if I was going to get rid of it or not, but I've decided to give it one more go.

Any and all help is much appreciated!

you need to reburn puppy linux your disk has a problem. or your old think pad does not have enough ram for puppy. I had that problem with 4.2.1

Sorry, I forgot to post that I burned 3 copies of puppy. 2 copies of 4.2.1, and another copy of an older version of puppy that didn't work either. None of those burns worked. I think that this laptop has somewhere around 98 MB of RAM, and I've heard that puppy runs on less than that.

have you tried
puppy pfix=ram
at the initial boot prompt

also could be the computer your burning the cd,s from, a slow burn speed sometimes help, had a crazy cd drive that when i burned a cd from one computer would work and when i burn cd from another computer the crazy cd drive would not boot the cd regardless what i did, but other computers would boot the cd that wouldn't work on the crazy cd drive.

I can't get to anything related to puppy, when i boot up I get that error.

Also, I've tried burning the CD on two different computers, one running Ubuntu, and one running Vista. Both CDs didn't work.

Problem solved. I went into BIOS and it was set so it booted from CD, HD1, HD2, then HD3. I changed it so it boot from CD, Floppy, HD1, then HD2. I don't really see why that would've helped at all, considering this had nothing to do with a floppy drive (you have to remove the CD drive in order to use the floppy drive) but it worked! Thank you everyone for your help!

EDIT: Actually, I tried it again and I failed to start from CD.
HOWEVER I did find out how to successfully start from CD. Make sure the CD is in the tray when starting, then go into BIOS. Select restart in BIOS and let the laptop restart. When it restarts, it will boot from CD! Strange, but it works!

4.2.1 is a big pup 90 mb disk loads into ram with out a swap file. that is simple math. It would be a slow machine to start . puppy 2.0 try that one.