[Grml] Loading 2.6.20-grmlEBDA is big ... booting hangs

I'm installing grml 1.1 on an HP tc1100 tablet. The Hard drive has been replaced with a 12GB CF card (SanDisk Extreme III).

I stepped through the grml2hd process selecting all the defaults. When booting, after the splash screen, this message comes up and the machine hangs:

Loading 2.6.20-grmlEBDA is big; kernel setup stack overlaps LILO second stage

Any suggestions much appreciated.

- John