My Lenovo Zhaoyang notebook computer was first installed with a WINXP system, but the installation disc had some problems. After it was installed it could run. Later I went to Hailong and bought another installation disc, and as a result it installed two WINXP systems. I want to format the drive and reinstall, but now I just can't get into DOS with a boot disk (the BIOS settings are definitely not wrong). Asking all the experts here how to deal with this? Thanks!

