problem starting mac os x

[xiaoxiaoxi]

hi everyone ,

 

so i have ideneb suppose to install me the version 10.5.7 of leopard.

so ifollowed tutorials creates a partition installed dual boot and finally lauch the dvd

 

everything works fine and i got the installationn menu so i went to disk utilities selected my partition and i erased it the mac os extended journaled

then i select the partition that i want for the mac os and and i did not select options for the first time

so i have installation complete and when i start up the computer chameleon screen appears asking me to select between mac and windows and when i select mac the apple appears but for like about 10 seconds and the computers reboot

can someone help me please =)