Very weird network issue- please help!

Hi everyone,

Today, I turned on my MacBook and there seemed to be a complete networking failure- the VPN, Bluetooth, Airport, Sound and Battery icons in the top right corner of the screen disappeared and on doing network diagnostics it said 'Network fail" next to each networking option. Then, after panicking and trying to fix it (to no avail) the icons returned and my computer is back to normal and everything is working. Does anybody have any idea what could cause such a strange problem and if they do, what I can do to ensure that it doesn't happen again? I'm planning to call Apple tomorrow but I was hoping that somebody may be able to shed some light on this.

Cheers.

Paul