|Since both problems happen when you're online, they may be due to a poor internet connection.|
When an internet connection becomes poor, it's common for the connection to NOT get better when the problem that caused that has gone away.
Try re-starting your standalone high speed modem, or combo router / high speed modem.
- if it has a switch, switch it off, switch it on
- if it has no switch, uplug it's DC power on the back of it by pulling on the plug, not the cord, plug it back in.
When the leds on it indicate you have a working internet connection, that may take a few minutes, try the things you were having problems with again.
If you're connecting to a router or combo router / high speed modem wirelessly, make sure the signal between the computer's wireless adapter and the device is strong enough for the internet connection to work well - you may need to move the netbook. If you have a standalone router, you could try re-starting that too, the same way.