my English is very bad, so sry first.
Today I had the first time the problem, that if I dont have data volume and normally have slow internet (edge, 2G) I have to manually swith my networkmode to 2G.
In Stock ROM and in a earlier build of Cyanogenmod (I now own the newest nightlie (from 23/02/2014)), there was no problem, because it switched automatically to slow internet.
Today this doesnt work.
So I only wanted to note, that it would be nice if there will come a fix out in next time.