MacBook/Wireless problem

[Aspect]

My wireless connection seems to be dropping out occasionaly and crashing my mbp with it. The connection will go, then as i go to check the network settings it crashes. All i can do then is shut the machine down.

It tends to be when im using Azureus, but that may just be a coincidence.

Any ideas guys?

 

[Aspect]

What wireless security settings are on your router? and is OSX patched up to date?

I'm sure there was a similar thread about this issue floating around.

I've got a WEP password on it. OSX up to date at 10.5.1