Things the patch wont fix:
1. Your dodgy memory stick
2. Your out-of-date mobo bios version
3. Your buggy graphics driver version
4. Your undercooled CPU/GPU
5. Your modem card plugged into slot 2 and conflicting with your AGP port
6. etc
The fact that these things can hide in what "appears" to be a working computer doesnt change the fact that they are the computers issues.
As I've stated elsewhere, I upgraded my computer (For Oblivion and X3) with a new graphics card and and extra stick of 512mb ram, before Civ 4 was released.
In order to test my newly configured system, I downloaded and ran Aquamark and 3dmark05 (must be the 2005 version not the older 03 version). Both needed Dx9.0c so this was downloaded and installed from Microsoft. Both of them stress Dx9.0c more than any game released to date. Neither of them would run once they switched to 3d mode - both instantly hung my PC needing a hard reboot.
I didnt blame either piece of software.
Several PSU swapouts (the 6600gt is a powerhog so I thought the PSU wasnt coping - as it happens it was OK), bios upgrades, memory config changes, and graphics driver reloads later, I got both 3dmark05 and Aquamark running perfectly.
Surprisingly enough, when Civ4 subsequently arrived in the post, it ran perfectly out of the box.
All I'm asking is that those with problems just accept the "possibility" that it is their machine and not the software that is the problem - that way you are more likely to get the problem fixed. There are a lot of very knowledgable people available on these boards to help you fix it - if you dont jump down their throats first...
I agree the software was released early - but other than some extremely minor in-game bugs (like when clicking on the minimap or unit actions, the click sometimes gets read as if on the main map in the background) and the poorly optimised memory management (not a leak!) I haven't been anything other than impressed by Civ4's stability. I think Firaxis deserve a massive
for the product they released.
Oh, and before the complainers whine that "Your just another fanboy showoff because your game works", I spent a week on these boards before I got the game trying to help people who had problems by pointing out a lot of similarities to the issues I had with 3dmark etc. Some listened, most didnt. Its not my fault that those that didnt listen werent helped.