inctrl

I have an e-machines running Windows XP, which worked originally. Recently, I've been unable to access the Control Panel. Clicking on Start - Settings - Control Panel the first time after boot, brings up the white window with the little flashlight moving back and forth. After a few seconds, that disappears and I'm back at the Desktop. Subsequent attempts to open the Control Panel don't even open the white window, they just blink and I'm back at the Desktop. Any help would be appreciated.

I recently got a new "used" computer with Windows XP PRO on it. I have a Logitech 3-button mouse. WIN XP didn't recognise it as having 3 buttons. I downloaded and installed Logitech's Mouseware program. I'm now getting a hardware conflict. Under the Control Panel - System, I get a warning under the mouse. It shows I have a PS2 Logitech Mouse, but it says that there's an IRQ conflict "not enough resourses" between the mouse and something called "I8042prt". I've not been able to find anything on Logitech's website, nor on Microsoft's that addresses this. I can get to the screen to change the mouse's IRQ, but the choice is greyed out, and I can't figure out how to activate it. Any help would be greatly appreciated.