Get Off Those Maliciously Loaded Scripts!
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I see the directory index every time I load your site. I can’t tell if it was done maliciously or it your server is just not configured correctly, but it’s definitely not working. I don’t see any obvious signs of malware but it’s hard to tell when your site is not loading right anyway.

I would suggest that you talk to Gridhost about getting your server configured correctly or move to a better hosting provider if they are not going to help you.