On my cheap dual core Lenovo laptop (purchased at Best Buy to get used to Windows 8), Haiku x86 runs fine. Wifi works perfectly, etc. When I try to boot Haiku x86_64 CD, it crashes to KDL, with a "network" issue. If I unplug the Wifi card, Haiku x86_64 boots fine. Both versions are rather recent and recent to each other.
In looking at the directories, the 64-bit Haiku has all the same drivers as the 32-bit Haiku, so why the crash?