Wrong Resolution?!

Whenever I open my Yahoo Mail account I get this message:

"Your screen resolution is set below our minimum recommendation of 1024 x 600 pixels."

But my monitor's resolution is 1280 X 1024!

My browser in Pale Moon.

How do get rid of this problem?

TIA.

(Sorry if this has been discussed in another thread.
I looked for a thread about this but could not find any.)

To: ICIT2LOL

As stated above my monitor's resolution is set to 1280 X 1024.
It is the highest resolution available and is suited to my work
which is mechanical drafting (Autodesk Inventor).

To: ThrashZone

My monitor is ViewSonic, a cathode ray tube.
The problem has nothing to do with the monitor but with the browser and email account.

Chrome and Yahoo Mail did not give me this problem.

But I replaced Chrome with Firefox because I want a browser with a pull-down menu.
Firefox and Yahoo Mail give me this message:
"Your screen resolution is set below our minimum recommendation of 1024 x 600 pixels."

So I replaced Firefox with Pale Moon.
With Pale Moon and Yahoo Mail the same message appears!

To: ICIT2LOL and ThrashZone

Thanks for the replies.

To: AddRAM

I deleted IE months ago because of the never-ending "...not responding" messages.
A pull-down menu is user-friendly and Chrome does not have it.

To: ThrashZone

I don't know when my ViewSonic monitor was made. A computer store was
disposing of their old stock of CRTs and sold them at bargain prices.

To: RoasterMen

You must be joking!