Dimension XPS Gen 2 Series, Intel Pentium 4 at 3.2GHZ, 2GB DDR SDRAM at 400MHZ.

Power:

Output Wattage: 460 Watts

Input Voltage (auto-sending): 90 - 135V at 50/60 Hz; or 180 - 265 V at 50/60 Hz

Heat Dissipation: 1000 BTU/hour (fully loaded computer without monitor)

Backup Battery: 3.0 V CR2032 coin cell

Seems plenty powerful to run Limewire. Can you see a conflict or something? The videocard is working great with games, video ets... The machine just seems to hate Sun Java.