Hi Grainger49,
It is not your computer, I am trying to get everything running smoothly for you guys, we had some permissions that needed to be granted at the server level for people with issues uploading attachments and we had to do a reboot for these changes. We did a move recently and have upgraded the system up about 5 major patches, so please bear with us as we try to get everything SMF running smoothly.
Thanks Grainger49