Instead of freezing and unfreezing every 5 sec. Try freezing it for 2O sec, unfreeze it, wait 1O sec, then freeze it again. Don't touch it anymore. Wait for the value to change to what you typed.
If that doesn't work, then keep messing with how long you freeze and unfreeze. I kept doing this, and eventually got the "feel" of when to unfreeze and freeze. It works, trust me.
And I used the regular CE. Not the no-setup one. Be sure to use the CE that has x86_64 in its name!