Thanks all for your support and guidance - my 32 bit machine has 4 GB of RAM - unfortunately system processing consumes nearly half - so I do not have sufficient RAM to have both PA and Lumira on my laptop - I have tried and get crashes.
See my other thread on Hardware requirements to have both PA & Lumira co-installed.
My solution is I only have PA installed, use the embedded Lumira therein, and hope to upgrade to 64 bit machine before the Lumira embedded in PA becomes obsolete - Q1 2016..... 