Looking at the add it doesn't say that it can't be used beyond the boot screen and he does say it's easy to set up. Therefore if you get no-where then goods are not fit for purpose and are not as described. Presume you paid via Paypal? They usually are sympathetic to the payer unless it's clear they are at fault. If it gets to refund, push for the full price inc P&P and cost of return, if you can.
