I tried replacing my PS2 mouse with a serial mouse on Com1 which has its own IRQ and is not used by WriteLog. When I start WriteLog my system crashes too. I'm using version 10.22 and Windows 98se. Does anyone have WriteLog working with a serial mouse? If so what is your setup? 73, Eric - K6EP -- WWW: http://www.writelog.com/ Submissions: writelog@contesting.com Administrative requests: writelog-REQUEST@contesting.com Problems: owner-writelog@contesting.com