Original Title: Standby System Failed.Two nights ago, when I went to snooze my computer (XP Sp3 x86 AVG free AntiVirus), I received the following error message: The devise driver for the 'HID-Compliant mouse' device is preventing the machine from entering standby. Please close all applications and try again. If the problem persist, you may need to update the driver. Yesterday, I downloaded “IP_70_OEM.zip” from microsoft, unpacked and installed what I thought was the required update for Microsoft Basic Optical Mouse 1.0A.Last night, I received a modified error message: The devise driver for the 'Microsoft USB Basic Optical Mouse IntellPoint)' device is preventing the machine from entering standby. Please close all applications and try again. If the problem persist, you may need to update the driver. What can I do to get standby to function properly on my computer?

Hi nahenry,Were you able to enter the computer in standby mode earlier?As per the message, it seems that the mouse is preventing the computer from entering into standby/sleep.I would suggest you follow these methods and check if it helps.Method 1If you were able to enter the computer in standby mode earlier, you may try to perform a system restore on the machine and check if it helps. You may follow the given link for the same.How to restore Windows XP to a previous stateMethod 2You may try to uncheck the option of allowing the device to wake the computer. Follow the steps given below.a) Click on Start, and then right click on My Computer > Properties.b) Click on Device Manager on the left hand pane.c) Expand Mouse on the right hand side.d) Right click on the 'HID-Compliant mouse' and click on Properties.e) Click on the Power Management tab.f) Uncheck the option “Allow this device to wake the computer”.g) Click Ok.Verify if the machine is able to enter the standby state.Hope the information helps. Please post back and let us know.RegardsDebleena SMicrosoft Answers Support EngineerVisit our Microsoft Answers Feedback Forum and let us know what you think.