I am unable to boot my machine. It seem that "go back" is in a loop situation. As I boot up I get a message, go back has found your computer to be unstable, you will need to reboot your system and I get an error message ox15. It also has on go back an option to remove "go back". The only thing that works is reboot that will not bring the computer on line and reboots again and again. After several tries of this I get an error code of 141. Has anyone seen anything like this. The operating system is win 2K. dell machine