Hi, I've had this problem well before version 1.0.
I watch recorded DVB-T transport streams (.TS files) recorded with WinTV v7. The video and 'telx' subtitles work fine.
When I use forwards/backwards seek shortcuts [SHIFT/ALT/CTRL + RIGHT/LEFT], the video just hangs for half a second then continues playing.
The shortcuts are using the default settings, reassigning the shortcuts doesn't change it.
The mouse wheel seeks backwards/forwards when the cursor is over the timeline but I can't find the setting to reduce its seek amount.
I have tested other video files and the seek shortcuts work, with varying degrees of artefacting, or crashing.
Seeking works perfectly with no artefacts in Media Player Classic.
Here is a 11.2 MB recording I made with WinTV for first-hand evaluation: http://www.megaupload.com/?d=678VG0T0 (md5: a3298943005ca79c2e6130f724c5027e)
I hope there is a solution so I can stop clicking the timeline just to go backwards 5 seconds but end up way off.