Ok well first of all, I have an AGP ATI Radeon 9800 Pro 128MB video card with the Omega drivers installed (based on the Catalyst 3.6 drivers).  I have a P4 2.4 Ghz processor on an Intel D865PERL Motherboard that supports AGP 8X.  I have DirectX 9.0b installed and when I open dxdiag, and I look at the display tab and for the AGP texture acceleration option, it says not available with the Disable button greyed out.  I have heard of this problem before, and heard without AGP texture acceleration, video performance can be 10-20% lower than with it enabled.  Anyone know of this problem, and what I should do?  Is it possible its because of the Omega drivers?  I would revert back to Catalyst drivers but changing drivers has become a nightmare for me lately...I dont want to change them unless that IS my problem.  

AND HOLY CRAP!!!  My Frame Rates have doubled since I fixed this problem!  Went from 15 FPS on the ground at KSJC (my test site) to 28-30 FPS!!!  I knew something was wrong, as I expected a little better performance than I was getting with my system!  Turns out my computer was reading my card as PCI and not AGP even though I had it in the AGP slot.  

Is your Card in PCI mode? You can check this on the active Desktop/Customize my desktop/settings/advanced.
If your settings say "Bus:     PCI mode" then you need to install your motherboard AGP drivers.
  This is what mine said and this was installed by 'proffesionals' at a computer shop. I wonder what they thought the point of an Fx 5600 if its not running AGP mode!
Heres how it should look (depending on what speed bus you have)