FIRST: backup your wallet.dat before anything goes wrong.

2 things I would try:

1) downgrade to whatever version of bitcoin you had before, and see if that corrects any problems.

2) If overclocked, reduce the core clock speed of your GPU(s) and see if that corrects the problem.  Also make sure you're still connecting to the correct host.

Those are my immediate first two thoughts.




167vtW32VZ6WedqnFYVftYaSfcKibBeVHp