I think your problem is the build-in card reader in the HP Pavilion "Altair". If it is the model with 4 memory card slots plus a USB port like most of the older HP/Compaq machines. The reader is limited to 2 GB capacity.(I asked HP/Compaq support about this). As someone mention earlier, get a standalone USB SDHC carder reader.
Re: Leewit Help
I think your problem is the build-in card reader in the HP Pavilion "Altair". If it is the model with 4 memory card slots plus a USB port like most of the older HP/Compaq machines. The reader is limited to 2 GB capacity.(I asked HP/Compaq support about this). As someone mention earlier, get a standalone USB SDHC carder reader.
Or just get a regular 2GB SD memory card.