Cannot print or export

Cannot print or export invoice, I get the following error:

Internet explorer cannot download exportaction.do from invoice.zoho.com

Internet explorer was not able to open this internet site. the requested site is either unavailable or cannot be found. Please try again later.

Would love to upgrade to the paid service because it is exactly what I need for my small business, but with these many glitches can I depend upon the reliabilty of this site?

Julian
www.themusicology.com