As John D says this is a very clever little fellow!! I updated my Virus checker on Sunday (as I usually do on a weekly basis) but the cure for this one wasn't loaded until Monday. Don't think you are safe from this one even if you don't open the attachment...you are not!! If you run Outlook Express with the preview pane open i.e. the message appearing under the email at download you will not stop it! Your first priority is to reset your layout through View/Layout/Preview pane. See the box is unchecked. This way when your emails come in they will not be opened until you physically open them. If you do double click on the title it will immediately run the virus! My wife got caught out last night as the sender and the email title was familiar and they usually send an attachment. Fortunately she was off line when she opened it. It was noticed by a sudden flash across the screen which said "Downloading". She realised the problem and called me. I indicated no problem...use the virus scanner and cleaner.....Now here's where it is really clever....your virus scanner appears to be running but it isn't. It will scan approx 15 files and then disappear from the t! ask bar!! If you don't know if you've got it or not, try running your scan and clean!!. It will also affect all other networked computers. Fortunately the problem was restricted to my computer. I was able to up load the latest patch from a third party machine and load it from CD, there was no problem with that. You will then have to find the method of running the virus scanner from DOS by looking at your supplier's website. The actual method is quite simple. It will find and delete both the bugbear virus and the trojan PWS-Hooker which it also downloads. When you have got rid of them be sure you re boot your machine before going on line again as the virus checker will otherwise remain in active. Here's a tip.... If you want to see what's in an email in Outlook without opening it, highlight the title, right click on it, select Properties then details tab followed by message source in the bottom rh corner of the window. YOU HAVE BEEN WARNED!! Nick Armstrong