Finally sorted it out although I've got slightly less hair than I did at 8:45 this morning!!
Apparently it is a known bug in Activestink which Microsoft are working on a fix for (IYBTITYAO!), which can be sorted but requires a hard reset of the PDA.
If anyone else has a similar problem the article can be found at:
http://www.lakefrontsoftware.com/pocketshop_syncfaq.htm
If your unsure about how to do a hard reset safely try:
http://pocketpccentral.net/help/dellx5reset.htm
Bob
