Reporting the same vcomp100 issue, I have also tried installing the previously mentioned package and am using the latest DX/drivers.
However, I do have an old version of dolphin, in the r4000 range that works perfectly, not sure if knowing that can help pinpoint the problem at all.
However, I do have an old version of dolphin, in the r4000 range that works perfectly, not sure if knowing that can help pinpoint the problem at all.