Sleeping PC wakes immediately after sleeping

Hi guys,
I have the bonjour SDK installed and have enabled wake for network access in the control panel, and it seems to be registering all of my services on my airport express correctly.
My issue seems to be, that sometimes, not all the time, the PC wakes immediately after going to sleep.
Obviously this is a pain as I want the PC to stay sleeping as much as possible to save on power.
I have checked that I have no active connections to any services running on the PC, currently only windows file sharing, itunes sharing, and Plex media sharing are showing up as services.
Is it likely that Bonjour is causing the PC to wake, or is it perhaps something else?
Thanks
Eds

I have had the same problem you described for the past week. Very frustrating, also very dangerous. I got in from work today and my mbp had turned itself on with the lid closed, it was absolutely roasting hot, must have gone close to cooking it. Mine seems to be worse when its on power, did you guys notice any difference on power or battery?

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Message was edited by: cornelius

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Sleeping PC wakes immediately after sleeping

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