AutoCAD file association issue.

[14tjoyce]

I have AutoCAD 2004 installed with PlayOnLinux and WINE and I have the system configured to run AutoCAD when I click on a *.dwg file. But because AutoCAD is a Windows program I get the errors "Cannot find the specified drawing file. Please verify that file exists" and "Ignoring unknown switches: /home/tom/Documents/AutoCAD". I know that the program interprets /home/tom as C:\users\tom\My Documents. Is there a way I can add launch settings or something to tell AutoCAD "C:\users\tom\My Documents\Documents\AutoCAD Drawings\whatever.dwg" instead of /home/tom/Documents/AutoCAD Drawings/whatever.dwg"?

Doubt it will help much but system info is:
Kubuntu 10.04 LTS
Acer Aspire 5810TZ
320 GB HDD
3GB RAM
8GB Swap
KDE 4.5 RC1
AutoCAD 2004 Release version 2004.0 SP 0

Thanks!