Windows 7 - High CPU usage caused by Java and all apps using Java

Hi Guys,

I experience a strange problem lately, since a few weeks my CPU usage goes up to 100% whenever I use a Java application, especially Usenet client "Unzbin", whenever I download my CPU peaks at 100%, same with my PS3 Media Server, whenever I stream a movie or MP3s to my PS3 my CPU jumps up to 100% and the fan goes beserk, both apps are Java based. In my task manager it's either Unzbin.exe peaking with my CPU or PS3media.exe, even when I close them the CPU still goes beserk until I close the Java file in my task manager.

The weird thing is that my CPU only peaks when Unzbin downloads, as soon as the download finishes and it starts to verify the Par files and unpacks my CPU goes back to normal, same goes for PS3 Media Server, as soon as I stream my CPU peaks, lately it has become so bad that I can't stream any HD files anymore as it stutters and freezes, so I was wondering if tha Java problem is somehow linked to my network card as it only acts up when I use the network with Java. My network card is Intel 82566DC Gigabit.

I deinstalled Java and reinstalled it, de-and reinstalled Unzbin and PS3 Media Server but no change.

Does anyone have any idea what could cause this? I had no hardware change and no change in software, just the normal Java updates.

I did a spyware check and have BitDefender 2011 installed, no Virus or other threat found.