Lap top was hooked to tv with vga cables,no luck getting picture to tv, messed with display settings via control panel,since then no display. Shows dell and windows icons,then black. Passes preboot system assessment. Tried safe mode vga,white characters displayed on black screen,but no response. Tried to boot from install disc, no display. From looking on the net,my guess is the video card has given up. Any comment would be welcome,thanks
Resolution; Tried a used base,same result. Had to replace hard drive+ download drivers keyed to new base number,all is now well. I thought that because C passed test that the hard drive was OK,but not so.