We have confirmed the symptom.
To avoid the symptom, please refer to the following procedures:
A. To change the settings of taskbar
1) Right-click on the taskbar, and then click [Properties] from [Menu].
2) Clear the [Auto hide] check box in the [Taskbar Properties] dialog box ([Taskbar and Menu Properties] in the case of Windows Me) and select the [Always on top] checkbox.
B. To change the screen resolution
1) Click [Start], point to [Settings], and then click [Control Panel]. Then double-click the [Display] icon.
2) Set the slider bar in the [Screen Area] box to values other than [1024 x 480] in the [Settings] tab of the [Display Properties] dialog box.