Press <Enter>, lose cursor

[Graham Thompson]

Hi. Often (but not always) when I am composing an email in Yahoo Mail (either from scratch or in response to an incoming email), I type the first paragraph of my message, hit <Enter> and find that my cursor has disappeared. I can recover the cursor by clicking on the first paragraph but it still won't allow me to open a new paragraph. If I keep hitting <Enter>, I get thrown out of the message, which is then automatically saved as a draft.
The only way to recover from this is to close down Yahoo Mail and restart it, but the problem recurs shortly afterwards and I have to go through the whole restart Yahoo Mail process again. This is happening several times a day