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Message: [QUOTE="Guest, post: 10987178"] I have a Vista compatible USB Mourse - Model # AMU0503US - Targus Mini Kaleidoscope Optical Retractable Mouse - Vista Ready..... This mouse worked out of the box when I plugged it into the right side port of my HP Laptop.... the MS HID-compliant mouse driver correctly appeared under Mice and other pointing devices in the Device Manager.... NOTE: This HP Laptop comes with a Synaptics PS/2 Port TouchPad, which seems to always work correctly... When I plug the USB HID compliant mouse into the left side port (same USB HUB), Vista does Not recognize it as a HID Compliant mouse and places it under "Other devices" as a "USB MOUSE" with an exclamation point next to it.... When I reinstall the driver for the USB MOUSE, I have Vista search my C:\windows\ directory for a driver. It returns the following message: "Windows found driver software for your device but encountered an error while attempting to install it. USB Human Interface Device The system cannot find the file specified." NOTE: Based on recommendations in other posts, I have renamed the INFCACHE file in the inf drectory under Windows, which seems to have... At one point I had the USB Mouse working on both sides of the computer after uninstalling the HID driver and reinstalling it, but lost this recipe after I had to go back to a previous restore point..... I also managed to reverse it so the HID mouse worked on the left side but NOT the right side... go figure... Any ideas on why Vista cannot correctly recognize the USB HID mouse on both sides of the computer on the same USB HUB? [/QUOTE]

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