There seems to be a little math problem in your Webserver script at the moment.

My total utility is currently "nan" (http://en.wikipedia.org/wiki/NaN) probably thanks to the fact that Utility at eligius-eu is "nan", which in turn is caused by utility for the 325 shares I submitted there (through multipool of course) for block #132521 being "nan" for whatever reason.

And let me offer a little suggestion: It would be nice if instead of "utility" you'd have "expected efficiency" (i.e. utility divided by number of submitted shares) listed on the site. That way one could compare it directly with the achieved efficiency without having to do all the divisions by hand (or rather in the Windows calculator...).

Also, is there any particular reason that bitcoinpool is listed twice?

I'm mining on Multipool under the address 1Jp9L4vkdkpFBmUWrBQcwj5rFSrmpzc19F if you need that info to check the problems yourself.

Thanks again for offering this service!