how can i use tv as computer screen with acer aspire 5100-3583

A few ways. One is a special TV out that came with the computer. If not installed then you need either a gizmo to convert PC video to TV Or a new video adapter that can produce TV out signals. Otherwise you need a TV that already has a PC input. "Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10

Thanks for reply. My tv has pc in but I could not get computer screen to show on tv. I will try again. Thanks again.

"My tv has pc in but I could not get computer screen to show on tv. I will try again." If it's a 15 pinhole port the same as a monitor port... You need a male VGA (pins) to probably a male VGA (on the TV) video cable, from the VGA port on the laptop to the PC port on the computer, then you need to select a video source on the TV other than the TV tuner itself - video1, video 2, PC, whatever works. ........ The display from the laptop to the TV may have to be enabled like so as well: http://www.svideo.com/displayvideo.... That's for TV out, but the same applies (The cable must be connected before you attempt to enable the display)

You need to set second display as the TV. "Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10