I can definitely understand your frustration, especially when moving from a regular keyboard and mouse to this tiny "NetBook". I just got mine two days ago and am still getting used to the keyboard, but I think it will become second nature after using it for another month or two. Regarding your cursor jumping around everywhere it could be that you are inadvertently touching the pad with the bottom or the palms of your hands. But this can easily be fixed. The main issue I was struggling with at first was the fact that the "scroll area" space on the touchpad, IMHO (of course!) was really more than twice the size on both the bottom and right side of the pad then I would prefer it to be.
The two issues mentioned above can both be resolved through the touchpad software that is pre-installed on the laptop, or at least it was on my 505. There are several different ways to access the settings for the touchpad but this method will work for the majority of users, since we all like to customize our systems. Open control panel, click to sort by large or small icon, I use small, open mouse. Now you are under the settings page for your mouse (touchpad), in order to fully control all of the touchpad settings you must select the last tab with the red icon on it. For some users it may not be the last tab so just find the tab with the red icon and the tab is labeled "Device Settings". Once at this tab, make sure the Synaptics option is selected in the first box, then click "Settings".
This takes you to the Synaptics settings menu where you can change almost every aspect of your touchpad. I just got my NB505 so my drivers are most likely current, if you are running an older system you might want to consider upgrading the drivers since new features are added by the manufacturer all of the time. The primary settings that helped me were 1. reducing the size of the area on the bottom and right side of the touchpad that is dedicated to the scrolling function rather than navigating the cursor. I just looked and the setting is referred to as the "scrolling region".
Another common problem is accidentally touching the touchpad with the palms or other part of the hand while using the keyboard. To be on the safe side I lowered the sensitivity by one setting. I actually did this by moving the slider over to the right by one mark. The setting is labeled Palm Check under Pointing-->Sensitivity. I would recommend going to each setting, get an understanding of exactly what it does either by reading the description or watching the video, then make adjustments as necessary. Depending on how familiar you are with adjusting a trackpad you might want to only make one or two adjustments at a time and then test. In addition you might want to gradually increase/decrease the setting rather than making major changes since a slight change may be all that you need. Do not worry about breaking anything, you can always click the "default" button which will reset everything back to the default settings. Good luck and I hope this helps even one person, because this laptop is extremely functional once you get it customized to suit your own style of use. Good luck to everyone struggling with what would appear to be a pointer with a mind of its own, even though computers only do what they are asked to do by the user or programmed to do by the developer.
If you are still having problems or are unable to find or properly tweak these settings, please reply to this thread so that myself or someone else can assist further. Unless there is some faulty hardware or you caught a crazy virus, there is almost a 100% chance that changing a setting or two will resolve the issue. Some screenshots would be helpful but I don't have the time to get them now but if you need them just let me know and I will come back and add some.
