Nearly every time I start Armory, it spends an hour or more "Building Databases." I found the following in my log, so clearly something is screwy. Any suggestions on what is set up wrong?

-INFO  - 1393994894: (..\leveldb_wrapper.cpp:127) Opening databases...
-INFO  - 1393994895: (..\BlockUtils.cpp:1695) Total blk*.dat files:                 121
-INFO  - 1393994895: (..\BlockUtils.cpp:1713) Current Top block in HEADERS DB:  288401
-INFO  - 1393994895: (..\BlockUtils.cpp:1714) Current Top block in BLKDATA DB:  288401
-INFO  - 1393994895: (..\BlockUtils.cpp:1715) Current Applied blocks up to hgt: 0
-ERROR - 1393994898: (..\BlockUtils.cpp:1766) Corrupted headers DB!
-INFO  - 1393994899: (..\BlockUtils.cpp:3628) Clearing databases for clean build
-WARN  - 1393994899: (..\BlockUtils.cpp:3529) Destroying databases;  will need to be rebuilt
-INFO  - 1393994901: (..\leveldb_wrapper.cpp:127) Opening databases...
-INFO  - 1393994901: (..\BlockUtils.cpp:3638) Resetting wallets for rescan
-INFO  - 1393994901: (..\BlockUtils.cpp:3690) Reading all headers and building chain...
-INFO  - 1393994987: (..\BlockUtils.cpp:3695) Total number of blk*.dat files: 121
-INFO  - 1393994987: (..\BlockUtils.cpp:3696) Total number of blocks found:   288987
-INFO  - 1393994987: (..\BlockUtils.cpp:3708) Getting latest blocks from blk*.dat files
-INFO  - 1393994987: (..\BlockUtils.cpp:3709) Total blockchain bytes: 16,193,275,466