VGA to HDMI problems, why isn't it working?

[Russell T]

I bought this thing that converts VGA output to HDMI input so that I can view my laptop display on my TV. I connected it all up but it only seems to want to display the initial windows startup up stuff (the windows loading bar and hardware info screen) whenever it gets to the advanced graphics (windows login onwards) the TV reports no signal and blacks out, any suggestions? I am aware of Fn+f8

Ive tried changing resolutions
Ive tried safemode
Ive tried different colour settings
Played around with TV settings
Checked connections
Tried a different computer (a desktop), the same problem occurs
Tried both vista and xp

At the moment, im thinking its a problem with:

1. My TV

or

2. My HDMI cable

The whole setup goes from the VGA from my laptop, through a VGA cable, into the converter which then connects to a HDMI cable which runs to my TV.

Any suggestions would be great,

Cheers