Here's a great tip from Michael Schogger regarding the Compact Flash Cards we use in our Psion machines. Compact Flash Cards have a reputation of not being recognised in the 5MX and this has been well document already. But, here's a really Top Tip: If you have a Compact Flash Card that is not being seen or being recognised by your 5MX. Take it out of the Psion 5MX, insert the Compact Flash Card into a digital camera and then format the Compact Flash card in the digital camera. Remove the Compact Flash card from the digital camera, insert the Compact Flash card back into the 5MX and Hey Presto, the Compact Flash card is now recognised and seen by the 5MX.