mark3986 I can't help, but mine (according to restore points) is updating at prescribed time ( each day at 1700).. I thought there used to be a list of scans in 'History' but can't see them. So I wonder if mine is actually scanning. Have you had restore points created at previous scans?
Make sure you have unchecked the box in MSE settings to "scan when computer on but not in use"
An 8pm scan could occur between 7.30 and 8.30 and if it misses the slot it won't scan that day... as you will see in the above I find it a major annoyance. Other than that MSE is great... and it's no big deal.