Hi Quirkie
How much RAM do you have in your machine ?
Virtual Memory is not specifically linked with RAM but if you don't have enough you could get this message popping up.
To check the V-M ....
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[TD=class: listNumber, align: right]1.
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[TD]Open System in Control Panel.
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[TD=class: listNumber, align: right]2.
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[TD]On the Advanced tab, under Performance, click Settings.
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[TD=class: listNumber, align: right]3.
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[TD]On the Advanced tab, under Virtual memory, click Change.
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[TD=class: listNumber, align: right]4.
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[TD]Under Drive [Volume Label], click the drive that contains the paging file you want to change.
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You are best advised to have this set to "System Managed".