I noticed a problem with 0.91.2 -
I had recently re-installed everything on my computer and rebuilt everything.  With Armory, I had loaded the first two wallets that I have and processed the block chain until the balances were shown. 

I added a fourth wallet and Armory has sat at "Scanning Transaction History" and "100%" for almost an hour.  The last entries in the log are:
INFO  - 1402836130: (..\BlockUtils.cpp:4567) Scanning Wallet #1 from height 0
-INFO  - 1402836131: (..\BlockUtils.cpp:4567) Scanning Wallet #2 from height 0
-INFO  - 1402836138: (..\BlockUtils.cpp:4567) Scanning Wallet #3 from height 0
-INFO  - 1402836145: (..\BlockUtils.cpp:4567) Scanning Wallet #4 from height 0
-INFO  - 1402836146: (..\BlockUtils.cpp:4888) Saving wallet history to DB
-INFO  - 1402836146: (..\BlockUtils.cpp:5920) Enabling zero-conf tracking (lite)
-DEBUG - 1402836657: (..\BlockUtils.cpp:5599) Organizing chain
-DEBUG - 1402836657: (..\BlockUtils.cpp:5723) Done organizing chain
-DEBUG - 1402836657: (..\BlockUtils.cpp:5599) Organizing chain
-DEBUG - 1402836657: (..\BlockUtils.cpp:5723) Done organizing chain
-INFO  - 1402836657: (..\BlockUtils.cpp:5143) Added new blocks to memory pool: 2
-INFO  - 1402836657: (..\BlockUtils.cpp:4888) Saving wallet history to DB

I am using a Lenovo V570 laptop with Win 7 Home x64.   Cpu 25% utilized and 5Gb RAM free.  If I restart Armory, it states 18 minutes to scan transactions. 

Is there are problem in using Bitcoin Core?  or something else going on?
Thanks,