Hi Guys, Really need your help

Some time ago I noticed that Sygic was with a strange "lag" when displaying my position... Then I figured out that Ovi Maps has the same problem...

First I thought in AGPS problem, always used to use "supl.nokia.com", already tryed to chane to google and restart and nothing...

So I tryed to full reflash my N900 (combined and vanilla) biut still with the same problem... The precision of the GPS works fine, but when I'm moving the moves much slower than me...

Now my biggest suspect is CSSU...

Anyone has a advice to help me? Maybe a app to test my gps stats...

I don't know, but I'm sure that here's the place to find out..

Tks for all