CompuServe Messages

HELP I have a Sony CD-Rom with a CDB-240 Adapter Card and a Sony CDU535 Drive unit. I can not get this thing to work with OS/2 or under the DOS sessions of OS/2. The IBM CDROM device driver does not work, nor does the "Generic" CDROM (CDROM_G.SYS) driver work with this card,( least I cann't seem to make it work). Under the DOS sessions, I can load the sony driver (sony_cdu.sys) but the MSCDEX.EXE always reports wrong version (great design). Setting the version number in the DOS Settings seems to have no effect. If I make a startup disk, the unit starts to work (for about 30 seconds) then my machine starts to beep, the session and the session is locked (can not close it). Does anyone have a driver that will work under OS/2, or one that will work in DOS mode of OS/2 version 2, or a phone number for SONY, Or is there a new version of MSCDEX.EXE.