As my friend TEF would say:
"the game's not even out yet and you've got problems already?!"
Don't worry, the tech FAQ will be here someday...pretty soon actually, since tech problems usually start with installation.
For now, let me give you the specs:
MM8 requires a 166MHz Pentium processor (but 200MHz is recommended),32Mb RAM (64Mb recommended), some 380 Mb free space on your Hard Drive and of course a 4x or faster CD-ROM. Makes sense, considering that the game uses the same engine as mm6 and mm7 :)