I read several years ago on web "teathered shooting and Bridge" and as I remember he said you need line amplifier if cables over 15? feet long. Might google and see what you can find.
Cable is OK. Files transfer fine just do not always display in Bridge. It's some type of refresh issue.
Thanks for the link. The Auto Preivew Latest File sounds good but does not work with CS6. Anything similar out there? Does lightroom auto scroll?
This is what I was thinking of. He speaks specifically of signal delays.
16′ or 25′ USB Booster Extension Cable
This is a must! Standard USB camera connection cables are too short for practical work. Since transfer speeds are slower over distance, typical USB extension cables are a poor choice. An “active” USB extension cable or “booster” cable is self powered through the connection, allows a cleaner signal, decreases the risk of corrupted files, and maintains a steady download speed. Active USB extension cables can be daisy chained up to 75.’
Fixed scrolling by simply deselecting all thumnails. Sort by file name desending order. Seems to have helped with the delayed displaying of new shots as well.
If it is thumbnails you might consider using small folders, like less than 1500 images. Compact cache as it can grow quite large. Also, embedded are the smallest and fastest thumbnails, but do not show raw edits..