Wireless Cutting Out

I have a new iMac 24", and using the wireless I find it very flaky. It cuts in and out quite a bit. I'm using a D-Link DIR-655 Wireless "N" router (with latest firmware) which sits about 6 feet away from my iMac.
It has become so bad I had to resort to plugging in an Ethernet cable.
We have a windows based laptop in the house which is in another room and it has no problems at all.
The System Profiler reports my AirPort card as:
AirPort Extreme (0x14E4, 0x88)
Broadcom BCM43xx 1.0 (4.170.25.8)
Anyone have any thoughts or suggestions?
Thanks
Paul

Actually yes!
I'm in the same situation as you but called dlink and manage to make the whole thing more stable.
Use the following settings and see if it works for you:
Go in advanced and then on the left advanced wireless and set the following:
Beacon Period : 80
RTS Threshold : 2100
Fragmentation Threshold : 2100
DTIM Interval : 3
That was mostly what made the whole thing more stable.

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Wireless Cutting Out

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