A few months ago i ordered 2 xps 630i computers for our home. My son and I play Lord of the Rings online and since we replaced our older XP pcs with 2 new XPS (32bit vista) I randomly, very randomly, get exited from the game with a windows vista error message that says "LOTRO client has stopped working". which then i click ok and restart the lotro online game. i bought 2 identical xps 620i computers at the same time and only this one (mine) does it. it does not appear to be the game itself as both are the same game and since it is online we both get the same exact updates.. and i play it much less than my son who is always on his playing lotro. it doesn't appear to be a heat related problem as it can happen within 10mins or days of starting the pc. it does not appear to be a network router/switch problem as i have swapped his port with mine.. also i just restart the game and everything may be fine for the next few hours or longer then one day i get it 3 or more times while online. this pc is just a recreational pc for me as i use a dell 9300 laptop for my home office work so it's not running anything extra or overloaded with junk.. the only programs loaded on these since we bought them are lotro and pccillin anti-virus software. i have called dell support and ran throught their tests but found no errors. i have loaded all current updates on both pcs but problem continues. i am very frustrated and would like to know if anyone else may be or have had similar experience. thnks