I hope someone can point me in the right direction. If I right click any .AVI files, select properties and click the summary tab it simply shows â€œSummary properties are unavailable for the selected source(s)â€ instead of the usual details about resolution, bit rate, codec etcâ€¦. (in the advanced view that is) The tab works fine for all other file types (jpg, mpeg, wmv, etcâ€¦) but with AVI I get nothing. I know the information is still embedded in the file because if I connect from another XP machine on my LAN to exactly the same file on this PC I can see the Summary details with no problem. Obviously Iâ€™ve changed something thatâ€™s screwing it up, but Google and M$ searches provide no answers. Has anyone ever seen this before? Cheers.