Tax Net and Tax Gross the same after upgarde

Hi I have just upgraded from v1.3.9d to e,

I have been adding stock in today and noticed when I am adding product in the product category that the gross price is not changing although I have "taxable goods" selected.

I have re-checked my tax zones and nothing has changed
MyStore in admin has
display prices with tax = "true"
display prices with tax in admin ="false" ( this didn't make any difference when I changed it to true )

The site online has the tax added correctly it is just not showing up in the admin side..

Any ideas??

Hi this happens to me to from time to time, but in my case it only an "optical" problem, because the prices are inserted ok into the database. Sometimes it helps to empty the cache/history of the browser. To be completely sure check on an other computer

Same thing here. I'm using Firefox (always the latest version) as a browser and sometimes all of a sudden, the prices in admin side show without tax even though I have "Display Prices with Tax" and "Display Prices with Tax in Admin" set to true. Prices show correctly in shop, though.

When I switch to Internet Explorer 8 and login to admin everything is ok. Maybe it's a browser thing.

It has happened to me in Zen Cart versions 1.38a through 1.39e, but only on Firefox. Restarting Firefox usually helps, but sometimes the problem is so persistent that even clearing cookies/cache does not help immediately. In those cases in just logout from admin and wait for a while and the taxes are back when I login the next time. Strange.