Few problems with progDVB :(

#1
Dear Friends

I ve two main problems with progDVB.
I ve SS2 v2.6D and I'm using progDVB 4.81

When I'm chaning any channels a message box appears saying "Command not supported!!!" .... What may be the problem ?

Second, with my video. When the video frames are getting changed, the image is seems to be shaking/bluring/not clear.

Hope to get a suitable reply here.
Thanx