Problem with emachines an t4150 (xp oem installed) rebooting when it is turned off. Helpful post said I should turn off the "reboot on error" option so I could see the error. I did that and it worked, got blue screen and among the hex gibberish was 'kbdclass.sys' and DRIVER_IRQL_NOT_LESS_OR_EQUAL. After reboot went to the keyboard in device manager and when I clicked on the resources tab the computer crashed again with a different blue screen. Rebooted in safe mode and I could view keyboard resources OK, found no IRQ conflicts. Went to the system Event Viewer and found a error log that corresponds to all my logoffs with the title 'Isermous' in the description it says 'the hardware resources for are already in use by another device' as you can see it leaves out the name of whatever is causing the error to pop up. I put 'isermous' into the file finder (with hidden and subfolder enabled) and came up empty. Any ideas?

> I got blue screen and among the hex > gibberish was 'kbdclass.sys' and > DRIVER_IRQL_NOT_LESS_OR_EQUAL. ... > title 'Isermous' in the description it > says 'the hardware resources for are > already in use by another device' > Any ideas? First of all it's not isermous but lsermous for L ogitech ser ial mous e I just solved such a problem of stop error in kbdclass.sys on a computer with XP uninstalling Mouseware 9.0