i am having problems with jas on 2 pc's

1. is a pc with a 2.8 ghz intel pentium 4 with 1 gb of ram with an asus p4s800mx mainboard and the problem on this one is that i try to install it but then it comes up with a box saying video mode not supported. so i changed the resolution and then it runs a few scans like it should but then it freezes and stops at oss sleep i have tried it in vmware but in vmware it stops at resetting iocatalogue and i cant do anything else with it

2. this computer has a intel e8500 processor a gigabyte x48 mainboard 4 gb of ram and a nvidea geforce 8800gt graphics card and the problem with this one is that i am not sure which components to install i have tried many times and get an error and when i just do a default install it installs perfectly fine but then it is justa a endless boot then reboot and that is all

i have tried iatkos v10i but that just restarts when i boot from it on both computers and have also tried pcwiz'z vmware image but that just does an endless boot

i would appreciate all help

thanx