Q on Wireless PC card utility

How should I configure Wireless PC card utility?

Wireless Mode: there are two options (802.11 B/G Mix and 802.11 B only);

Ad hoc wireless: two options (802.11 B/G Mix and 802.11 B only);

B/G protection: three options (Auto, on, off);

Should I able "TX Burst"

Should I Turn off RF?

Thanks alot in advance.
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BTW, on the solution on how to deal with the problem "wirless disconnection every 3 minutes, please read my reply under the thread.