Regarding sounds, are they in the appropriate wave file format? I doubt this is due to virtual memory.
As to the original issue, I don't know what the trouble is. All I can think of is that it's a software conflict. Virtual memory is a chunk of space on the hard drive used by windows as an overflow to your ram, if you try using more memory than you have windows uses this instead. If you had it turned off I could see problems in theory. Of course the only systems I've seen with it disabled by default are SSD based netbooks.
cx2
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