LR5 keeps asking teh serial number, PS cc does not...

Hi,

I have entered f the Photography program and subscribed to CC for photography ( LR5 + Photoshop). I have first installed Photoshop and the demo mode disappeared, perfect!. Few weeks later ( yesterday) I have launched and installed LR 5 that I had downloaded at te same time of PS, just kept on the zip file.. After installing it and upgraded it to 5.3 version, The demo mode is still on, keeps on asking the serial number to be activated. I checked the address, the info on my account, the language settings on my CC adobe account ( set to english)...everything seems normal. I logged in and off several times.

PS runs well, no questions asked, LR5 does not. I have seen many have solved by changing the language setting , my language setting ios already in english. I have tried to change the language of LR5 and swich it to english, problem still is on. Any solutions or help?

thanx

claudio