too much cpu usage on my side.
Try to hunt down this issue: Download and run Process Explorer
, select Shareaza.exe process in the list, right click and select "Properties...", in this dialog select tab "Threads", then select thread consuming most processor time and press "Stack" button. You will see current call stack of thread and all suspicious modules, so you can figure out who is guilty. To be sure you must repeat pressing "Stack" button several times.