Slight glitch using webmail on Google Chrome

[#1]

I have noticed, since becoming a Plusnet member recently, that when composing a mail using webmail in Google Chrome, the text box overlaps the Subject line, to the extent where you cannot see what you're typing.
Not sure if this is the correct place to post this problem, but I'm sure a mod will move it otherwise.

[#2]

Here's a screenshot to help

[#3]

That looks a lot like this (https://community.plus.net/forum/index.php/topic,132546.0.html) long standing topic. Please take a look to see if it is the same or not.

[#4]

Thanks, I did spot that whilst browsing through the forum. It seems that a quick vertical resize of the window cures this problem but doesn't solve it.