Zarlack

The problem is solved Two issues: On this asrock mainboard the usb jumper setting is by default (it's on 2-3 should be on 1-2 )wrong so i had to adjust this contacted asrock for this. This fixed the problem untill i installed, my advanced graphics drivers form ASUS for my GF mx 4000 SH*t hit the fan again...so these advanced drivers seem to have an impact on this system also . Now everything runs smoothly, thanks for all your input

I'll certainly try that keep you all posted thnaks

nope did'nt try that..mm would be an idea..although i'm 100% the mouse is ok. Tested it on another machine with same xp running..

Hello all Hope you can help me out on this on. Just bought a new mainboard asrock k7s8x with SIS 746fx chipset amd 2400+ 512 pc2100 ddr geforce mx4000 128 ddr creative audigy 1 After putting all the hardware together things look ok, in the bios. Then i'm installing windowsxp..and still things go great(checked the compatibility list) Now after a new reboot when xp is completely installed, as soon as i start using my microsoft optical(usb) mouse, the whole system goes beserk!!!! ;( Without clicking but only moving the mouse al kinds of apps start running and opening (sometimes 20x)..i am unable to do anything I tried al 6 usb ports and xp detects and recognizes the mouse without any problems... Does anybody has any idea(accept buying a new mainboard)!!!!