warbird Since you say it just started after you did some work. Have you did a
full Scandisk and
Defrag of your drive AHP is located on?
Once you start adding and deleting your AHX file will get fragmented causing slowdowns and error this happens with ANY file on your hard drive!
A Full scandisk in XP requires a shut down to perform!
I did some adding of ninja Pan & tilts and found after words AHP would give me the "USB error" and want to redownload to the interface, a Scandisk & Defrag has fixed this or appears to have
for now!
Note: a scandisk should be performed before a defrag
I'm not saying every time you change something in AHP you need to do this, but if strange errors or behaviour starts to occur this should be considered!