The computer is a Powerspec G160, Intel I5, DP67BG motherboard, ATI Radeon HD5450 graphics card. Full specs are here:
http://powerspec.com/systems/system_specs.phtml?selection=G160.
The computer is running Windows Home Premium SR 1.
No overclocking or other hacks.
Added: two internal SATA hard drives and an LG Blu-ray drive HL-DT-ST-BD--RE WH12LS39.
Two monitors, one connected at the DVI port, the other at the HDMI port.
I have a printer and external hard drives connected over USB and I'm using both eSATA ports for external drives, but the problem occurs even when they are all powered off.
The problem: Often, the mouse pointer momentarily hangs when being moved into a clickable area. Occasionally the mouse pointer freezes and at the same time the mouse laser and num lock light on the keyboard turn off; computer becomes unresponsive to keyboard and mouse. Most often, this happens when moving the mouse pointer into a clickable area or when a new window or dialog box appears. Sometimes plugging mouse and keyboard into different USB ports restores function. The computer is otherwise still running normally: pressing the on/off button shuts down the computer normally, or brings up the "this program is preventing the computer from shutting down" dialog.
I have updated all drivers and the BIOS. The Device Manager reports that everything is operating normally.
I did notice that there are two drivers for audio -- AMD high definition audio device and Realtek High Definition Audio. The AMD driver was probably installed when I updated the chipset driver. There was a Microsoft driver before I installed the Realtek driver; I had disabled that. I've just, while writing this, disabled the AMD driver and will see whether that fixes the problem. Stay tuned...
http://powerspec.com/systems/system_specs.phtml?selection=G160.
The computer is running Windows Home Premium SR 1.
No overclocking or other hacks.
Added: two internal SATA hard drives and an LG Blu-ray drive HL-DT-ST-BD--RE WH12LS39.
Two monitors, one connected at the DVI port, the other at the HDMI port.
I have a printer and external hard drives connected over USB and I'm using both eSATA ports for external drives, but the problem occurs even when they are all powered off.
The problem: Often, the mouse pointer momentarily hangs when being moved into a clickable area. Occasionally the mouse pointer freezes and at the same time the mouse laser and num lock light on the keyboard turn off; computer becomes unresponsive to keyboard and mouse. Most often, this happens when moving the mouse pointer into a clickable area or when a new window or dialog box appears. Sometimes plugging mouse and keyboard into different USB ports restores function. The computer is otherwise still running normally: pressing the on/off button shuts down the computer normally, or brings up the "this program is preventing the computer from shutting down" dialog.
I have updated all drivers and the BIOS. The Device Manager reports that everything is operating normally.
I did notice that there are two drivers for audio -- AMD high definition audio device and Realtek High Definition Audio. The AMD driver was probably installed when I updated the chipset driver. There was a Microsoft driver before I installed the Realtek driver; I had disabled that. I've just, while writing this, disabled the AMD driver and will see whether that fixes the problem. Stay tuned...