..I do odd size clips fairly regularly...400X200 ...360X180...and so on, to fit tables in web pages and multimedia projects...everything went well in VV...I could render them fine in multiple formats and use all the VV codecs....the other day I made one clip at 377X190...although I could output an uncompressed .avi file, the rest crashed the program...mpeg1&2, wmv kept shutting down the app...I thought my codecs were trashed...I spent over 6 hours re-installing everything and tore my hair out trying to figure out what was wrong...well, it was the 377 size...I boosted the 377 by 3 pixes to 380 and presto...no more crashes...for those of you who weren't aware, don't use odd number frame sizes...for those of you who were aware, quit laughing at me...