I have successfully completed a hdinstall of the KNOPPIX_V3.2-2003-06-06-EN.iso on my Compaq Presario 12XL125, no problems whatsoever. Specs include:

AMD K6-2 533 MHz
192 MB (PC100 SDRAM)
Trident Blade AGP 4 MB (Shared)
13.3 in. TFT active matrix (1024x768 @ 24-bit)
6x DVD-ROM
Via Onboard Audio