Hi timandsveta,
Unfortunately this is indeed a software problem. We will address this in an upcoming update but the next version of Little Math may not come anytime soon (at the moment we can't say exactly when it will be available). In the meantime we have two possible suggestions on working around this issue:
1. Attach your taskbar to the left or right side of the screen, and this should free up some vertical space to help you access the Little Math buttons that were previously cut off from the screen:
- Right-click on any empty area of the taskbar
- Un-check "Lock the taskbar"
- Drag taskbar and move it to the left or right side of your screen
- Open Little Math and open any Preset Setting window
- Drag the setting window's title bar and move it upwards until the buttons at the bottom are at least partly visible (Save / Save As / Cancel buttons)
2. If available, you can connect your netbook to a TV or another monitor with a larger resolution (recommended height is 600+ px)
We apologize for the inconvenience, and we hope that our suggestions help somehow.