I had the problem for 3 weeks. Finally solved it by doing some clearing:
settings/applications/manage applications/all
google play store - clear data
Talk - clear data
after that I switched the phone off and on again, you need to renter google play store with your gmail details and then connect to Talk.
Worked for me - good luck
settings/applications/manage applications/all
google play store - clear data
Talk - clear data
after that I switched the phone off and on again, you need to renter google play store with your gmail details and then connect to Talk.
Worked for me - good luck