I am trying to connect an acer one notebook to a beko 32" flatscreen and everytime i plug the vga lead in the laptop screen goes black an the tv says no signal,,what am i doing wrong??

It could be a no. of things:

- Wrong input selected via the TV
- The VGA input on the TV is turned off
- Problem with the VGA cord
- Problem with either VGA port

there the basics, if there all great and it's still no working, try setting your Computer display to EXTEND rather then projector only, then play around with your graphic output settings.

UPDATE all your Drivers and check all your cables. PLUG IN YOUR LAPTOP, yes it will make a difference to the way the graphics card operates.

Hope this helps.