请教版主：

我的爱机最近出现过几次“蓝屏”，屏幕内容如下：

Windows
Terminating thread due to a stack overflow problem. A VxD,possibly recently installed,has consumed too much stack space. Increase the setting of "MinSPs" in SYSTEM.INI or remove recently installed VxD's. There are currently 4 SPs allocated.
Press any key to continue
有时是在开机时出现，有时又在使用一段时间出现，其中的SPs到底是什么意思？MinSPs设置为多少比较合
适？