Can't add anything in terms of a solution but I can say I am having the same problem. I downloaded from SUN's site and installed the JRE using RPM. Looked OK. Downloaded LimeWire and attempted install but get the '..can't find JVM' message that so many others seem to be having. I am a newbie and I can say that I have not been messing around with 'things' so my system is pretty much standard. I did install Opera without problem, outside of that the system is vanilla. This has got to be something fundamental, the JRE install and the LimeWIre install doc do not help with this problem as far as I can determine....so far. I will keep at it but is it always this difficult in Linux?