I have the same SSE2 problem with Adobe applications. I have Premiere Pro 1,5 which dosnt support HDV capture, but you can capture usind Mainconcept pro HD mpg2 plug in for Premiere; this way you can capture hd in Your system, but premire will be very slow. As you already know AE7 wonnt recognize mpeg2 hdv file; this can be solved by exporting the mpeg2 hdv from premiere as TIFF sequence. after that AE wont have any problems with the tiff sequance. very quick way of working with hdv files in amd processors than dont support SSE2…