[Lynne]

Looking at the three pages you listed - showthread, image, and attachments - I am thinking that your problem has to do with users viewing images. You have a couple of modifications that deal with images, but I am unfamiliar with either of them. I'm not sure what vB Image Hosting does, but it doesn't sound like it would be good for a site that is having problems (hosts images on your own server? Yep, just looked it up.) I think that would be one of the first I would dump to see if things improve. However, to be honest, I have no idea how you would go about seeing if things are better when you are on shared hosting. What are you supposed to see if things are better? Just that your host doesn't turn off your site? Can you monitor server loads? Look at queries per page? You might want to view access_logs to see if you can pick something out, but really, I don't know.