Hello, I've been experiencing lots of problems on my iMac running Leopard, and was hoping someone here might help me. I have tried (with two different units) to use a bluetooth headset, and while I am able to pair the device with the iMac, in addition to random disconnects (and what seems to be some interaction with my Apple bluetooth mouse - it slows down), the input comes out as a weird crackling sound. I've tested this with Skype, but research on the web suggests there is a bigger problem between the Mac's bluetooth and headsets generally. My current headset is the Motorola H12. I was wondering if anyone has discovered a workaround. Alternatively, I've read that some people use a USB bluetooth dongle. Not that I want to spend more money, but if this is true can anyone recommend a small and inexpensive one? Would I need to install software? I am curious how this would work, given that that computer has built in bluetooth. Thanks in advance.