Readers seem to be loving the free backgrounds so far! I am so happy to bring you something you like. I've had several requests for a smaller CuteTree background to smaller monitors, so that the trees along the bottom don't get cut off.
Keep in mind that if you have a small monitor, or low resolution, how you see your blog is not how others see it with larger or higher res sizes.
For example, here is a gorgeous blog currently using this design, on my 19" monitor:
Mad Imaginations - beautiful blog! and you can see the row of trees all pretty

And here is that same blog, just viewed on my husband's 15" monitor. It's the same blog, but the trees look cut off only because of the size of the monitor.
Conversely, if you use a smaller design, it may look too small on someone else's computer.
So why do some layouts look ok small?
It's because they are very simple, and use a narrow blog space in order to show more of their design in the background.
Take this for example: "I'm Irish" background from CBOTB

That source image is actually
2000 pixels wide, so it will fit any monitor and resolution. But the actual area where your blog goes is very narrow, which is why most other free blog design places
require you to change your layout to "Minima" before using them. If you use anything wider, your text will overlap the background.
Like this

In the future, I will try and make my designs more flexible, while still allowing a wider blog to be used for you all.
Keeping that in mind, here is the CuteTree design that is 800x600 in size for you.
I have also removed the code that hides your navbar. It seems that more people use theirs than find it ugly, so I won't be including that bit in any other backgrounds.

Cutetree
Let me know how that works out for you!