jagged video edges in AVS Video Editor 9 preview windows under Windows 10

Recently got new PC and thus moved up from Windows 8 to Windows 10.

I use AVS video editor a lot and the preview window on my old pc under W8 always has smooth edges, but under Windows 10 the preview looks lousy and jagged.

I have discussed this problem with Microsoft, AVS and AMD, but so far have found no fix.

Similar preview window in Subtitle Workshop, under Windows 10 is perfect.

I have Klite mega installed on both coputers.

I suspect the problem lies with AVS, but having a lousy video preview makes editing videos all the more difficult.

Any suggestions?

Thanks,

Jonathan

You can test standard DirectShow behavior with the GraphStudioNext tool from the codec pack. If that gives good image, then fault is in the AVS application.