I have the same problem with version 4.14.8 and java verified fine on their website with version 6 update 2. Although I am running vista but if he has xp then its the same. Its limewire.exe and uses a cpu of 40-50% but it says 100% cpu usage on the bottom of the task manager with no other processes showing anything more than 5%. It says 77,608K for memory and physical memory is about 46%