Fixing Wi-fi on HP laptop after upgrading to Windows 8

Symptoms

Charms | Settings | Network displays "Wi-Fi (Off)" with no option to turn it on

Charms | Settings | Change PC Settings | Wireless displays Wi-Fi as off and greyed so unable to turn on

Start | Type "View Network Connections" | Select Settings | Select View Network Connections displays   the Wi-Fi adapter as being "Not connected" with a Red X symbol

What worked for me

After spending ages updating software, reinstalling drivers and generally mucking around, the following finally worked for me.

Restart, press F10 to get to BIOS and reset all settings to System Defaults.

For me it's the menu on the far right. Don't forget to save the settings.

What's the cause?

Airplane mode as introduced in Windows 8 appears to screw up the ability to control Wi-Fi via the hardware button. Luckily it fixes itself when the BIOS is reset.

Profile unavailable in Force.com Class/Page security

Problem: when you try to add a profile to class/page security, the profile isn't available
Cause: the profile already has access to the class or page. Job already done!

Force.com IDE - report deployment

Problem

Deploying reports using Save to Server in Eclipse appears to work ok, but the report is not updated.

Solution

Use Deploy to Server instead. This will report deployment errors, whereas Save to Server doesn't.

It appears they use different logic behind the scenes!