Hello dude_read, welcome.
1024 x 768 is actually the lowest accepted standard for viewing content. If you are running the system at 800 x 600, you will have visual problems displaying content that's designed for larger resolutions.
If you change it up a notch to 1024 x 768, that should do the trick. Alternatively you could change your DPI settings but it's most likely the low resolution you have set.
Let us know,
Thanks!