This is what I was able to dig out from the internet:
http://stackoverflow.com/questions/5004 ... -error-htmIt seems the theme is not being able to decide if the browser is IE8 or not. I tried the htaccess file solution but it seems it might need to be done someplace else also? Any ideas on a fix. As this error will pop up for anyone using IE8
By the way the error is not consistent each time. It pops up sometimes and does load the page and other times it just says page does not exist with the standard IE error.
This needs a fix fast as my site is actually live.