Rails - Jul 2006 - rails clock lags

hello,

after several hours of use (~100 hours), clocks of my fcgi scripts 
starts to desync with system clock.

IS it a bug in ruby/rails/fcgi or is there something like a memory leak 
which pushes clock earlier and earlier. is there a way to change clock 
within Ruby? Maybe I am manipulatiing time but am not aware of it by 
using that function.

any ideas?

thanks in advance