LyX cache

[Påvel Nicklasson]

I use LyX 2.0 on Ubuntu 11.04. When I did some work in my /home folder I  
realised that my .lyx folder is very big. Most of the space is taken by  
the subfolder "cache" which is over 5GB big. It mostly contains images  
from my projects in .eps and .png formats. Is it safe to empty the cache  
subfolder? Is there a way to flush it from within LyX? Such a big cache  
building up can be an issue on small systems.

Best Regards
Påvel