Limewire keeps shutting down after several minutes. I have already disabled the firewall, and tried uninstalling the latest version, and in stalling a previous version. My system runs as follows:

Com cast Cable internet connection
2.4 quad core processor
250 gigs of available hard drive
6 megs of ddr2 ram
Vista Premium
Touch stone cable modem # TM 502G
From home
no brickwall on interface
only computer on network
Limewire version 4.16 (somewhat more stable than 5.0.11)
Running threatfire