How can I secure my laptop lead

I give a lot of presentations using a video projector. My new laptop does not have the screw holes that old laptops used to have to ensure a secure VGA connection. Can I buy a different type of lead? If so what do I do at events where the venue has a hidden projector and just a protruding VGA lead?
Richard May, by email

Surprisingly it’s a health and safety issue. The lack of screw lugs on laptop VGA sockets is to allow the heavy cable to detach easily from the PC if it is pulled or someone accidentally trips over the lead and to be fair it has prevented a few grazed knees and probably saved a lot of laptops from an untimely demise. I am not aware of any VGA connectors with a more secure fit and other video connector systems, like HDMI and DVI -- if your laptop has them -- are only useful if the projector is similarly equipped. There are a number of wireless adaptors that get around the around the problem of a long, heavy trailing lead putting a strain on the socket. Direct VGA to VGA senders tend to be rather expensive, but there are several models that use a USB wireless dongle to stream video to a receiver module with a VGA output socket. Have a look at the TruLink Wireless USB to VGA range (prices start at around £150.00 online) and IOGear USB to VGA kit (£190.00). Check to make sure they can handle the resolution and aspect ratio you are using, and be aware that some models are video only, so you will still need cables for the audio.