Man, what a pain!
All through my test phase, Joomla Server caching was switched on. Being the only person who ever placed test orders from my site, I never saw an issue.
It wasn't until orders significantly dropped, that I realised I had a problem
People complained that they:
* couldn't place an order
* had the wrong item in their cart
* couldn't clear their cart
* couldn't update their cart
I've now switched off all server caching (in both places, Global configuration and Plugins) and am a little hesitant to try out the other caching tools that are mentioned here.
Has anyone had 100% success with *any* caching modules for VM?
Tim