Nasty new virus which encrypts your files and demands $300 to decrypt them.. DO NOT pay, make sure you have anti virus real time scanning enabled, your files are backed up and exercise caution when browsing the web or accessing your emails. http://www.theregister.co.uk/2013/10/18/cryptolocker_ransmware/?page=1 The key is be secure now because if you do get the virus your files WILL be unusable forever. It is not even certain paying the ransom would help… Drop me a line if you have any security concerns.