Re: Slow performance, FX 5200 on AGP, 87xx drivers <25fps in games.
glxgears will always show high CPU usage, however that doesn't mean that anything is wrong.
However, I'm not seeing anything obviously wrong in your bug report. Its quite possible that you're hitting a hardware limitation for the AGP controller on your motherboard. Have you verified that you're using the latest BIOS? Also, does your BIOS have a means of setting the AGP aperture?