New 27" iMac: AIRPORT & BlueTooth Connection Problems

Hi There,
My 24" Intel Imac (C2D) has been replaced with new 27" iMac.
The problems mentioned below did not exist on the 24", However, I have real wireless
connection problems with the new 27";
1. AIRPORT: 27" iMac will not create Network (Computer to Computer) therefore I am unable to connect my iPhone 3G to its WiFi Network (some iPhone Apps - require WiFi)
2. BLUETOOTH: Although the 27" Imac is paired with my iPhone 3G - it will not connect iPhone to
Bluetooth..... BT options for both iPhone and iMac are ON and set as Discoverable.
(Note: Apple Wireless Keyboard & Apple Magic Mouse are both connected)
It seems as though Apple have changed procedure for actioning the above on these new 27" iMacs,
however they have not documented what is required to make it happen..... OR its a bug in 10.6.2 ??
If anyone has similar problems or knows of a workaround - all comments and advice would be much appreciated.
NB: This 27"iMac has no problems joining with an Airport Network (Airport Extreme Module) which then allows the iPhone 3G to also connect to that (for WiFi) But, that would seem to be an awkward and unnecessary proceedure ??
I'm baffled - there seems to be something missing (in OS Software or Procedure)

Sound like some strange issues.
1. AIRPORT: 27" iMac will not create Network (Computer to Computer) therefore I am unable to connect my iPhone 3G to its WiFi Network (some iPhone Apps - require WiFi)
So you don't have a wireless network that you normally use?
2. BLUETOOTH: Although the 27" Imac is paired with my iPhone 3G - it will not connect iPhone to
Bluetooth..... BT options for both iPhone and iMac are ON and set as Discoverable.
(Note: Apple Wireless Keyboard & Apple Magic Mouse are both connected
Are you saying that the iMac is using Bluetooth to connect to the keyboard and mouse but can't connect via Bluetooth to the iPhone?

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Message was edited by: amsguitarist

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