Product Tax Problem with Copy & Paste

[party_pete]

I've copy & pasted some products from an obsolete site into an existing v905 site (not the one in my sig) but every pasted product now has a blank field here;

Product Details > Details > Tax Treatment

Is there any way I can bulk change these without going through every product and amending manually? Or any ideas what has gone wrong?

[jont]

Try tripping them all back by setting the global tax to 15% and then back to 17.5% - may just reboot everything.

[party_pete]

No joy unfortunately.

The error received is attached.

This is the same for every product.

[jont]

The dirty solution is to edit the database directly and replace the values.

If you want to ZIP up the .mdb file to the usual place I will edit it for you when I get back this evening.

[jont]

As a thought - is the copied product in the original site set to use the standard VAT rate?