CrunchBang Linux

i have some boot problems too !
i have downloaded 4 times the iso did a md5sum to all and was ok burned all and none of them want to enter in live interface!
i have checked the cd's from boot interface and all of them founded errors!
same thing with Kiwi linux based on ubuntu 8.10 too!
now i have kiwi 8.10 but i installed kiwi 8.04 firs then updated it to 8.10 !
sorry for my bad english!
and tnx for help!