On my laptop (MBP which is currently without a charger and dead ) I get a perfect wifi signal.

However, on my desktop I get next to no signal at all. The fastest connection I have managed was on P2P d/l at 300KB/s (these were a couple of spikes, avg of around 50 KB/s). My MBP can get a constant +1 MB/s d/l over P2P.

Could this be because my desktop wifi antenna is a) under my desk as opposed to ontop of the desk like the MBP and b) within about a 10cm range to 2 high end GPUs both with fans and lots of other electrical compnenty type stuff.

If I was to get a wifi antenna cable and use it to move the wifi antenna to the top of my desk and away from my PC would it improve the signal?

Or is it more than that?

That big metal box of a PC is pretty good at blocking a wifi signal, any electrical interference is not good either, I use a USB wireless dongle that works twice as fast plugged into the front USB port as it does in the back ones, it has a better line to the router and less sparky things upsetting it, I can get a bit of improvement by using one of those USB extender things that come with the dongle too.

Must try the front port now that you mention it (USB mob. b.band and a netbook), and I recently discovered the benefits of an extender cable when it comes to signal strength - I'd put money on it a lot of people don't realise that's what the cable does, I didn't, and the guy at VM didn't mention it either