Hi, thanks for the response and yes understand the instructions thanks, only added turbo scripts after my final upgrade to the latest version and as mentioned thinking back I had the issue before this but was just mentioning it as a matter of the fact it is the only difference between my two sites.
I should really mention also that I am using the same hosting provider for both of my sites and although on different accounts the IIS settings are the same.
I think it has to do with an upgrade then somewhere along the lines, it's a real pain in the bum as every time you need to go to admin site settings you have to reset the smtp password and not hit the test button, which means then go to your site as normal and send a test message to make sure its working.
My new site works fine without the issue, the same happens with the redirect after login, works fine on my new site but no chance with my original site which has had two upgrades to bring it up to the latest version. Both upgrades went without issue and no errors reported.
This is not a stop dead in the water cant use it anymore type of problem or anything like that but just an annoyance more than anything and just bugs me as to why.