If you are confused because in schematics the forward/backward annotations are suddenly disabled and in the board the move-command is also disabled you should check the grid-settings in the board. Sometimes they are set to 0. In my case this happened when opening several files and not closing BOTH .sch and .brd together. Ralf
Hi, which Version of Eagle do you use? I tried to force this bug with V6.2 and could not achieve this. But if it occurs somewhen, it's good to know how to fix it, so thank you for telling us.