I re-engineered my home environment recently. My desktop is an AMD quad-core w/8GB RAM, running Hardy Heron. I set up LTSP on the box and my wife just runs an LTSP X-term. The thing boots up fine, but she is experiencing the session freezing up. This seems to happen when she is reading e-mail and there's a large image attachment in Thunderbird.

My wife's X-term has 128 MB RAM in it.

Where would there be log files that might describe the error?

Is there a config file somewhere with settings I might tweak for LTSP?