You can try this.
My partitions are named Work,Worbench,Data1 and Data2. If I remember I had the same problem. I went into OPUS and then opened my Work directory, took disk icon named Work and copied it into the RAM disk and the renamed it Data1 and then copied it into the Data1 directory and VOILA I had an icon on my workbench. I did the same for Data2.
Cheers....
Hope that helps.
