Ahooi again, just a note...
3D Mark 2001 runs fine on my system and so does all games that do NOT use Direct 3D. Warcraft III (with -opengl, without that command line in the shortcut it freezes at the menu) & Quake 3 runs perfectly for hours without any problems. There are no application problems.
This is real funny, NOT!. Do you think the CPU can be bad only when it comes to Direct 3D games as 3D Mark works fine? I've already just installed Windows XP cleanly, updated all the drivers (WinXP comes with directX 8.1) to the newest and tried the games. Same [-peep-]!
Think I'll install Windows 98se and see what happens, but first I'll grab that unsupported 6193 drivers.
Thanks for all the help and keep that ideas comming!