Serious Wireless problem with Windows Mobile 6.1

[Liquid_Mind]

Hello everyone. I need your help with my smart phone... Two days ago i tried to make a video and in one moment the camera blocked (motionless image for 10-15 seconds) and later he didn't kept any video at all in the memory. At that moment something happened in the system.
One day later, when i tried to connect to different WiFi networks - it was impossible. He would keep connecting and in the last moment when he should realize/conclude the connection he would simply loose the signal and start all from the beginning. Besides that the wireless manager became very sluggish, stops responding sometimes and sometimes entries are missing in the connection fields (like absence of WPA and WPA-PSK options). That problem resolves after deleting the settings of a particular network and restarting the device but it still remains impossible to connect to any network. It seems as if the registry got corrupted... Besides that the device works normally.
What can i do? Thanks a lot!