Need advice on RunDll error loading problem...

Could anyone advise me on how to get rid of a annoying message which
happens every time on start up.

RunDll/error loading


module not found

Now everything else on my laptop is working wonderfully loving my vista
experience. Have been using mac for years and can only find this as my
only annoyance with vista can anybody help me, would very much welcome
your guidance in this matter thanking you inadvance.