Rewind and FF do not show video seeking for mkv's under VMR9 or EVR (1 Viewer)

[uncertainty]

When using fast forward or rewind for mkv files (x264 flavor) the frame counter does increase or decrease but I do not see the video seeking when performing it. If I play a hddvd's using powerdvd and fastforward I see the video seeking forward . Is this a limitation of the mkv file or should I be able to see the video seeking when performing fastforward or rewind?

Currently running 0.2.3.0 under Vista and this occurs under both VMR9 or EVR.