[Captivate Q&A, Help & Troubleshooting] kangi26:
This is a basic tutorial I wrote up a few months ago for the basic flashing back to stock. It has the link for Odin 1 Click, and for Windows drivers, which you'll need:

Flash to Stock JF6:

1.	Download Odin One Click from: http://www.mediafire.com/?0w2y31maz8mdom4

2.	Download your Windows Drivers from:

Windows 64bit: http://www.mediafire.com/?3dh4d6up72me9re

Windows 32bit: http://www.mediafire.com/?0b45zo7o75rc5d5

3.	Make sure your USB cable is connected directly to the back of your computer, not a USB hub or to a front connection and all of your drivers have been properly installed

4.	Do not connect your USB cable yet.

5.	On your phone, go to ; Settings/Applications/Development/and check “USB Debugging”

6.	Turn your phone off

7.	Remove your SIM card and Micro SD if you have one

8.	Open Odin One Click

9.	On your phone, press and hold the Volume up and the Volume down buttons. Do not touch the power button

10.	While holding them, insert your USB cable, wait for a couple of seconds and a yellow triangle with the Android figure will show up

11.	You’ll see in Odin, that your phone has been discovered

12.	Press “Start”

13.	Do Not mess with your phone at all

14.	When it is done, your phone will reboot and Odin will display “Removed”

15.	Unplug your USB cable from your phone

16.	If you are proceeding to Master clear, you must close Odin BEFORE Master Clear

Master Clear:

1.	Ensure you have backed up all of your information onto your Micro SD or your desktop BEFORE doing this. IT WILL ERASE EVERYTHING ON YOUR INTERNAL SD!!

2.	Make sure to remove your SIM and Micro SD if you have one

3.	With your USB cable disconnected from your phone, open Odin One Click

4.	On your phone, go to ; Settings/Applications/Development/and check “USB Debugging”

5.	Connect your USB cable to your phone

6.	You’ll in Odin, that your phone has been discovered

7.	Click “Master Clear”

8.	When the Master Clear has completed, your phone will reboot

9.	You’ll need to re-enable USB Debugging again

Remember to take what you read with a grain of salt; like it's been said before, your device can act very differently than someone else's in the thread you are reading. So your milage may vary. Also remember not to be turned off by the negatives you read in a thread, some people just like to nitpick and complain. For ME, I find that if you take the theme, and set it aside, that what you're looking for is a ROM that works for your device. At the core they are pretty much the same, and any thing you don't really like as far as the theming is concerned, can be changed. So what I think you need to find is a ROM/Kernel/Modem combo that gives you good marks on the basics; call quality, WiFi, BT, signal, if the signal/call quality isnt quite right, take a look at a new modem, if there is a little hickup in the functionality, try a different kernel.

My own piece of advise, stay away from the kernels that are OC'd until you are well versed in the flashing and so on. They can cause some problems, and I personally find aren't needed.

I'm partial(as you can see by my signature) to the Phoenix ROM. It's 2.2.1 i9000 based, where as Adams other ROM Firefly, is Rogers 2.2. Over and above all things, they are great threads, and most everyone is really, really helpful

Good luck and happy flashing