If it says something like "This software is not from Nokia and may harm your system" then don't worry about it, just click "Okay" and keep going. The application manager i can't keep going. it just closes. and if i open to install it again it will say the same thing and close again. when you buy n810 from different stores do they come with differnt softwares like a PC/laptop would? Cause i got my laptop from a different source.