Sometimes the sluggishness of this computer becomes really annoying, particularly when it is doing what is a relatively simple task conceptually but is encumbered by 'bloatware'. Despite a fast processor and lots of RAM there are times when it just trundles along. Interesting then to read that programmers are working on unleashing the often underused power of the graphics card. Bristling with processors that lie largely idle (except in the heat of intense gaming) they represent an untapped power that could supercharge a PC's performance. The Guardian, yesterday, carried the story.