Can’t connect to Windows Marketplace?

One of the checks the Marketplace application seems to make us having a look at your version information. A lot of custom ROMs put thier own string in, which seems to be upsetting it. To check, open up your favourite registry editor and make your way to:

HKEY_LOCAL_MACHINE\SYSTEM\Versions and change Aku to .5.3.00

And then soft reset and give it a go.