i have a new pavilion dv7t 7000 series laptop, model A3F83AV, and i've inserted a sony 16g sdhc card and a pny64g sdxc card but the pc doesn't recognize the cards. i cannot open them and they don't appear on windows explorer. my laptop is running win 7 home premium. are these types of cards supported by my card reader or is there a problem with my card reader?
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