hi to all i got Dell inspiron 1525 2.1ghz, 1gb ram, laptop with vista home basic 2 weeks back. On the first day i got blue screen error of dumping physical memory when again i got it i noticed the error peauth.sys, bad_pool_caller etc etc. im frequently updated the widows but was not able to completely download SP1. After 1 week of 4 attempts i finally downloaded SP1 last night. still im getting Physical dumping memory and blue screen .. i've run Memtest for 3-4 hours but no error was detected. Please can anyone help me out where is the problem. and why i'm getting blue screen error, this is new laptop. I don't want to replace it if it not hardware problem. is there something serious? im attaching zip file for minidump, i dont have bit idea of it. as i came to know that this might help in finding the problem.