Serial mouse hangs after Windows 95 hardware detection due to serial card.

The serial card being used, VITEX RS232 (HMC83451) has two serial ports and one printer port. The addressing scheme used by the VITEX RS232 card detects COM1 as a printer port.

Replace the RS232 (HMC83451) serial card with a Windows 95 serial card or with the VITEX RS232 (HMC83450) card, which does not include a printer port.
NOTE: The VITEX RS232 (HMC83451) serial card has been discontinued and replaced by the VITEX RS232 (HMC83450) serial card.