"from kaido: Snow Leopard has just about gotten to the point where I'd recommend it. Right now there's a big, glaring problem with 10.6.3 that causes your USB keyboard or USB mouse to stop functioning after wake-from-sleep; you have to do a manual unplug/replug to get it working again (annoying)."
I did have that issue with leo before also, did not think of it much then. so far on SLeo it has only happened once, and not after awaking after sleep, but from cold boot. i put system to sleep few times, then woke it up using keyboard / mouse, no problems so far. so I hope it won't happen too often.
the Sleo boots up impressively fast compare to leo.
"from moslack: Just boot into 32 bit mode by adding the command below to the com.apple.Boot.plist file which is located in the /Extra folder.
<key>Kernel Flags</key>
<string>arch=i386</string>
This will force the system to boot into 32 bit mode and should allow your video to work. HTH""
yes I thought that might have been the problem, but i just did a fresh install and this time I updated from apple's website directly using apple update and no problems so far.
though I have messed my "about this mac" info, which was wrong in the first place using a utility from the KIT and have tried to use the same utility to do a "factory restore" sort of thing but to no avail.
well not to worry as long as it works for few more months till a full guide shows up here and then gonna do a fresh install.
on graphics card: I have used both 8400gs and 6600gt without any problem with machacks. though i have noticed that 8400gs cards do break more frequently, no matter which OS system they are in.
SnowLeo, c2d e6350, ep35-ds3l, 6600gt.