Unable to download or attach attachments

by thequeenofcurdsandcream - 5/8/12 12:33 PM

Since this morning I have been unable to attach attachments to outgoing emails, nor have I been able to download attachments that have been sent with emails.

I'm using a Dell Vostro, running Windows 7 Professional, Firefox is my browser and my webmail is Yahoo Mail. I would welcome any help that can be suggested.