The MagicWB splash screen appears randomly but it can be made to appear every time on boot or it can be disabled completely.
In s:startup-sequence, you will find C:MagicWB-Demon, to make the splash screen appear every time edit the line so it reads:
C:MagicWB-Demon XEN
after that, save the file and reboot.
In the s: directory, there is a file called mti.data which can be disabled:
rename s:mti.data s:mti.data.orig