Captivate is my first smartphone

Hi guys.  I bought by Captivate back on Dec 16 and I loved it from the moment I started it up.  But as with any phone, I've noticed quirks here and there but overall, it's a great phone.  However, I replaced that phone just a couple of days ago because someone at the AT&T store said it was defective since it wouldn't update OTA.  1 big difference I've noticed between my 1st and 2nd phones is under the USB settings options: on my first phone I only had 3 options: Kies, media player, and mass storage.  On this phone, however, I have a 4th option: PC Internet.  Anybody else have this?  Is this to be the WiFi hotspot option for 2.2?  I used Google Navigate on Maps last night to test it out and the voice and GPS worked just fine (yay!). 

Also I contacted Samsung about updating the phone and they sent me a link to download Kies and the steps it gave me I had to put my phone into download mode (where I hold both rocker volume buttons and plug it in) to install all the drivers on the pc and since then it seems to be a little bit laggy.  I just want official 2.2 w/o a ROM or rooting or anything gaaah!

What is Cognition?  I've seen it mentioned once, but I'm not sure what it is.  Do I have to root to put it on?

This option is only available on the original stock 2.1 OS -- it was removed with the Firmware update to 2.1-version1 (build Eclair-UCJH7). 

Go to: Menu - Settings - About Phone
Check your Firmware version (will probably say 2.1)
Check your Build Number (will probably say Eclair.UCJH6)