Heng ah!
My 1.8mhz with a gb ram takes less than a minute!! =x
*touch wood*
Erm, a sure effective way is to change your windows appearance
to "classic mode". (windows 98 style)
Using this setting, windows runs like an angel with no problems
whatever so, but it's ugly.
To change it:
right click -- personalization -- theme settings -- windows
classic.