I'm running 2.1 on the Cellular South East network. I have received a notification that my Desire since is low on space, but I have over 100 mb of free memory. After a bit of research, I read that I should try to clear application caches. I used the application manager but the "clear cache " button for each application is greyed-out. I then read to wait a minute or so to allow all data to load. I waited 3 minutes, but I still couldn't clear any caches. Any ideas on the alert or on why I can't clear a cache?