Outlook 2003 Attachment Problems

Hello, I use Outlook 2003 for emails. The computer is personal (no domains/servers or anything) and runs XP SP3.

When receiving emails from friends, I quite often receive attachments of jpegs of trhe family and so on. I used to be able to simply double click the attachments in the email and they would open the photos and I could view them. This no longer works. I now need to download the attachments then open them to view. I get a message about no program installed or something so I'm thinking there must be a way to set the default program that Outlook uses to open Jpegs. I know that once saved I can riught click and change properties on the individual files themselves but I have no idea how to set a policy that Outlook will use. I hope you understand what I mean.

Does anyone know of a setting somewhere that i need to amend that will allow me to open attachements from within the email.

Many thanks

If windows has forgot what you use to open jpegs (and so then would office 2003) one way to fix it for all future jpeg is to set windows to use a default program to open all jpegs - and so then hopefully would office

right click a jpeg file and choose open with, then choose program option
this opens a new dialog box, so either choose your preferred program to view pictures or use windows picture and fax viewer then notice the checkbox near the bottom of the dialog window that says always use etc

now the jpegs should open with your preferred program and hopefully double clicking the attachments on outlook should open using the same

however

even if that does work - i personally still download everything and scan it rather than open as you have no way of knowing if the sender has actually sent it!!!!
their machine may have become infected.