Not sure, thinking that maybe the '384M' means your card has 384M transistors !? Best thing I can come up with !
What happens now when you try to run DXDIAG ?? Have you made sure that Hardware Acceleration is set to 'Full' ? Right-Click on your desktop and select 'Properties' from the menu. When in your display properties, select the 'Settings' tab and then click on the button marked 'Advanced' and then click on the 'Troubleshoot' tab. You should then see a slider for hardware acceleration - make sure it is set to full.
The No Ma'am commandments:
1.) It is O.K. to call hooters 'knockers' and sometimes snack trays
2.) It is wrong to be French
3.) It is O.K. to put all bad people in a giant meat grinder
4.) Lawyers, see rule 3
5.) It is O.K. to drive a gas guzzler if it helps you get babes
6.) Everyone should car pool but me
7.) Bring back the word 'stewardesses'
8.) Synchronized swimming is not a sport
9.) Mud wrestling is a sport