These specs on a Dimension 4400 doesn't mention any AGP slot, however, this specification of the chipset suggest it supports AGP4x. So if you do actually have AGP since the chipset should support it, it's still only running in 4x, whereas a modern AGP card would want to run in 8x.
In my opinion, you've waited too long for a performance upgrade, too many core things about your PC are outdated (400mhz FSB, AGP4x). Still, if you have AGP you could buy a decent graphics card which you could bring along for a completely new PC.
If you'd download everest, click "Report", do a "System Summary only", "Plain text", when it's finished hit "Save to file", save and attach the file to a post here, giving advice would be simpler (knowing what you have and what you don't).
spsamsp, PCI-E is still so new you can buy a brand new computer without it, a PC from several years ago will not have PCI-E, PCI-E and PCI are two extremely different things.
LFS (demo) could supply the master server with one of these hardware-based keys, if the key doesn't exist an 'account' is created needing no user input, the player gets assigned a username tied to this 'account' (guest19538 etc.), which server admins can properly ban.
I'd say, if you were hopeless at track driving before spending alot of time with a sim, you'd probably be a bit less hopeless after, but driving the car on the limit, "approaching your in game lap times", absolutely not.
There are many corners where the ideal line aims straight for the inner curb.
You shouldn't be on the inside if you didn't have overlap at turn-in, thus it should not happen, if there'd be a crash it would be your fault.
First tight left hander at Aston National for example, the line heads from outer curb straight to inner curb, cutting someone off is very simple, and not fun racing.
And in the corners where the outside line is "not-so-fast", slowing down enough to allow side-by-side traffic can render the inner line faster, so you're basically just letting a car pass (which, in my view, had not even started overtaking in the first place). Your philosophy seems to allow blatant cutting of someone's line, and suggesting the driver being cut off should just leave room because that's somehow safe and fun racing.
I'd say having simple prerequisites to when two drivers are supposed to organize taking a corner side by side, when to yield etc. is alot safer.
Many corners don't allow side-by-side traffic, anyone can "outbrake" into a tight corner on the inside, putting themselves basically onto the inner curb with 90% of the turning still left to do, the driver on the outside would basically need to stop and just let the "outbraking genius" get thru.