There are quite a few options, which should allow you to see the screen easily. Here are some:
On the top toolbar on the right, you will see a button called OPTIONS. Click on that. Try:
-- Click on the far icon where it says Full Screen.
-- The next step will be to click on the Push Pin after the Tool Window has moved to the middle. This will keep it on top all the time.
-- Two boxes to the left of the Full Screen icon is one called View with a little arrow pointing downward. This will give you many options to resize the screen to your liking.
-- The spaces to the left of that is an icon with a magnifying glass, which allows you to magnify certain areas.
-- Now the most important option is the next to the last one, between Full Screen and the View option is an icon with a computer and a diagonal area from bottom right to top left. This is an incredibly important feature. Once you know the resolution of the computer you are remoting in from, you click on these and match the resolution so that the host computer is using the same. This will insure that once you click on the Full Size button on the right, both computers will be identical.
Basically, the far three icons will allow you to make the host computer look just as you want it.