signiture bug and missing go-back button

Just bring to your attention:

1) I can not update my signiture; I tried several times.

2) Previously there was a "going-back" button or icon over the message text field, which was useful to get back what we just wrote down when we accidently deleted it. But it is missing.

Thanks.

Thanks. I know ctrlc and ctrlv, did not know ctrlz and ctrly before. :) 

Mr Wordy

2. You can (at least in IE) hit Ctrl+Z and Ctrl+Y to undo/redo changes in the panel where you write and edit messages, if that's what you mean. (These are fairly standard keys in Windows.)