Ok, so here is my problem. I haven't found any info on here that helped. I was running Nod32. I uninstalled it through progs & features in the control pannel, rebooted the machine and then went to install it. got nearly to the end (installing drivers) and then the ESS rolls back. I don't get any specific error messages the installer just tells me that it encountered an error and the program didnt install. I have tried reinstalling NOD32 and uninstalling NOD32 using its own uninstaller, I've tried disconnecting from the internet, turning off Windows firewall and Defender, I've tried it with UAC on and off. I've tried it with the built in Administrator account and my account with admin. privileges. Any ideas?? Are there any logfiles that ESS dumps? My specs are as follows: Core Duo 1.6 1GB ram Windows Vista Ultimate 32bit Cheers!