[I sent this by email, but I’m assuming I sent it from the wrong address, since it still hasn’t shown up here.]
My css knowledge is a bit short and a bit rusty, but I can think of things other than missing semicolon or close paren. Missing right curly brace for one, or missing comment close. Also, at least in my case, the parts that showed up in the report or home view started just after a ‘td’ (with the single quotes) although I couldn’t find any mismatched quotes. The other possibility is something in the way that css gets embedded in the page might be broken. I think the next step might be to take the whole page (possibly try saving the report as HTML) and run it through some html/css checker.
Also - since you didn’t change your copy recently, I’m more inclined to look for how that css gets used, not the css itself. I’ll have to see if I can get the error back - but I may have deleted the version of kmymomney.css that triggered it.