Basically, i'm starting off with theos911's post in the Manuals section, about checking to see if I've got video acceleration going...
So, I tried the last few things you posted there, applying your suggested modifications to my xorg.conf... and what I end up getting would be kind of like if you were in Mac OS 9 (for example), going into the Monitors control panel, and setting it to 256 colors (8-bit). That's what I'm seeing. So absolutely, that speeds things up, but for me it doesn't seem like a substantial difference... like starting up Iceweasel, drawing a selection rectangle to select multiple icons/files.... the only really bad thing about it is that it screws up the colors of the Mint-X theme; noticeable when I open up a window, the colors of the navigation bar are pink, yellow, black, grey, and orange.... VERY odd.
ForcePCIMode was set to "true"
Driver was set to "fbdev"
HorizSync was set to 58-72
VertRefresh was set to 74-118
... and put pound signs (#) in front of both:
So i'm reverting back to my original xorg.conf.... for now.
And instead, I'll be trying to install the stuff seen on this thread:http://mintppc.org/forums/viewtopic.php?f=14&p=6798#p6793
The only thing I'm not sure of is whether I need to uninstall MESA 8.x before actually installing the older 7.x stuff...
I plan on uninstalling through Synaptic... then downloading all of the stuff from that page and installing through the Terminal...