Java SE (Java Platform, Standard Edition)

i recently completed a java application (simulation zoo) for a school project, which runs fine at uni and fine on unix machines. when i execute the file here at home on my P4 3Ghz, which is faster than the unix and uni computer, it takes about 4 minutes to load up.

someone has suggested my run time environment is not configured or something????

i have the j2se1.4.2 package installed and everything. it just runs like a snail. and this is a real problem when testing. there is no reason why it shouldnt load faster than the uni computers..

all java software is installed on my machine, it does not pass through a network.

can anyone help????