lilo problem on SuSE 8.0

Hi all, I install SuSE 8.0 Professional in an Notebook Compaq Presario 1640 with an HDD 4.1 GB: My partitions is : hda1 fat32 (2.5GB) hda2 swap (128MB) hda3 rasierfs (1.5 GB) But if i reboot (ctrl+alt+del or reboot command) the system, in next boot apear LI and system stop. If i use shutdown command .. the next boot has no problem.... 'LI' message: the second stage has been invoked but could not be started. This can either be caused by a geometry mesmatch or by moving /boot/boot.b whithout reinstalling LILO. -> I'am not move the boot.b but i reinstall LILO for solve problem with /sbin/lilo but no good results.... What's it? Thanx all. []'s ancker P.s.: On SuSE 6.4 this processes work fine.