A translation
MT-104
3-Button Mouse PS2
Installation of standard driver under Windows 95/98/ME.
1) Right-click My Computer
2) Open Control Panel and click on System, click on Hardware and than Device Manager
3) Click on (+) beside 'Mice and other pointing devices'.
4) Right-click on the device which is listed now below (should appear in blue), and select Properties.
5) Select the Driver tab and select Update Driver.
6) Select Continue.
7) In the next window select "Display a list of known....." and click on Next.
8) In the next window select "Show all hardware".
9) You get two lists, on the left select the first entry (Standard mouse types) while in the right window you should select the driver for your connection (Standard PS/2-Mouse or Serial Maus), click Next.
10) After the driver has been loaded you click on Finish and the driver is installed. Restarting the system is not required also strongly recommended.
I doubt that this will cure your problem....