man error (grof grotty error signal 11)
 

When try to use a man page like: man man, man ls, and a long etc. This error appear, groff grotty error signal 11. I dont know what it is. But sometimes the man pages open, and mostly this error appear.
I think that the linux can have corrupted files or something alike, this error i dont think to be very commun.
How can check if are corrupted important files in my linux?

Thanks.

No one can help me?.