Installation not working

Hello Guys,
i am new to linux, but not a total newbie…

first i would like to mention my hardware.
Amd Atholon processor x2
Amd 690 Chipset mobo (Manufacturer jetway)
Up-to date main bios (and a backup bios)
2 gigs ddr2 ram
and a 160 gigs sata2 hdd…
ooh most imp, ATI radeon mobo integrated x1200 graphics.

and done about hardware…

now my problem,
i have downloaded the DVD x86_64 one.
and when i start normal installation, it loads kernel and i get a black permenet screen. no erros nothing…

so i tried NO-ACPI mode, and it worked… then setup continued…

and the installation went fine, configured everything properly… and after finishing first part of installation, it asked for reboot with a 10 sec timer.

after that, it started the reboot process, and at the end
PC DINT reboot, instead of it, it got hanged on a black screen with many white multiple lines…

Plz help…

thanks in advance