been able to they sweep along It's defined in lines, i.e. the number of black to white transitions you can draw on a horizontal line before it all becomes a grey blur. If you know the dot pitch for your monitor then it will be about 1/2 that for delta dots or 1/3 that for stripes Multiplied by the tube width. Domestic receivers are rarely better than 450 lines which is why NetTV is so warm and fuzzy. Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. ________________________________________________________________________ This message has been checked for all known viruses, by Star Internet, delivered through the MessageLabs Virus Control Centre. For further information visit: http://www.star.net.uk/stats.asp