Sunday 4 March at 5.03pm
(repeated Wednesday 7 March at 6.03pm)

Alan Daulby steps in for our usual presenter Adam Walton in this week's programme and steps up to the challenge with a look at the new generation of computer games that could help keep us fitter and thinner. Adam will be back in the hot seat next week.

The best blogs

The Best of Brit Blog Awards 2007 (the BOBBs) launches this week and sets out to find and reward the UK's most talented writers in the blogosphere.

A new blog is created every second and at the end of 2006 there were 60 million blogs worldwide.

But, what makes a good blog? Are they just for wannabes? Prince Charles, Gordon Brown and David Cameron all blog - so what does that make them?

Edward Gleave has written much about them in The Western Mail newspaper and offers his thoughts on the subject.

Fat-busting technology

How many times have we been told by the killjoys that playing video games will turn us into a nation of couch potatoes? The only place we'll build muscle will be in our thumbs, while the rest of us will wobble like a jelly on a unicycle.

Well, a new generation of games is leading a shift in opinion. Alan talks to Prof Tim Cable from Liverpool John Moores University, where studies have found that playing computer games can contribute to the daily activity recommendations for children.

PC Dcoctor

Simon Zerafa tackles two more listeners' questions.

Question 1

Since I have bought a new PC, some of the web pages are not full size, including BBC. How can I adjust this?

If you have a new LCD flat-panel screen you may find that many webpages will no longer fill the screen. It's not a problem, as it just means that your new screen has more pixels than the old one.

If text size is a problem you can increase this within Internet Explorer from View on the menu bar (View>Text Size) and you can select a larger size, but this can change the layout of webpages.

Most flat-panel displays work best at their 'native' resolution (which you should find listed in the manual), but you can change the screen resolution that Windows uses (Start>Settings>Control Panel>Display).

Choose the Settings tab and then you can move the screen resolution slider to the left to reduce the resolution. This would make everything bigger on the screen, but can also make text fuzzy. You can change the screen resolution back by using the same procedure.

Question 2

My computer has a removeable hard drive, but when I connect it to other laptops or computers, they don't recognise it.

This could be caused by one computer having a different operating system from the other (eg Windows XP and Windows 98). The earlier Windows system may require you to download drivers (software) to enable it to see the removable drive.

Also, the file formatting on the removeable hard drive may not be compatible with that on the other machine(s) - later systems use NTFS and earlier ones used FAT.

You can check the removable drive by plugging it into your regular PC. Look at My Computer, right click on the icon for the drive and select Properties. If it shows the drive is formatted FAT or FAT 32, it should work on any version of Windows. If it is NTFS, then it won't be recognised on Windows 98 or Me.

If you have any problems with technology, email us: mousemat@bbc.co.uk