Jane's mouse cursor keeps getting jammed or stuck. Leo says that the track pad may have some "schmutz" on it, causing the connection to be occluded. There's also static electricity that could be causing issues. She can clean it or take an eraser and fix it. But it sounds like a hardware error and Leo recommends taking it back to have them fix the track pad.
Leo also says that Toshiba laptops disable the trackpad while typing. There's a physical key that can disable the trackpad inadvertently too. It sounds like a synaptics trackpad and the settings can be adjusted to be more sensitive. Leo suggests checking into that.
Leo also says that when software is poorly written, this kind of stalled performance can happen.