Problem with serial mouse on win me

the mouse works but only until i log-in the network user after that it stops working. The pointer is there but there is no motion or clicking. i tried to solve this by removing both com ports and the mouse prom the device manager and it works again but only until it re-installs the com ports. I should mention that on a previous atemt to solve the problem it tried to install some logitech mouse driver as the PC detected but the instalation failed and becouse of that the system would not start in normal mode(only in safe mode) untill i disabled the lmouse.drv from mscomfig. please help!