memory errors

Can anyone help; I keep getting pop up memory errors what should I do to fix this annoying problem. When I click OK or Cancel it turns the application I was using off.
I’m using win XP pro and I have 512 MB of RAM and 100 Gb hard disk
Thank you all

  AndySD 11:10 28 May 04

First try downloading then updating then running AdAware click here then if still having problems click here and have a read.

Only four programs running at the start and I have Add-aware.
The only problem I have is the error message that keep popping up which is doing my head in!!!

  AndySD 12:04 28 May 04

click here or Memtest86 (my personal choice)

Also check what services are running in the background click here

  AndySD 12:05 28 May 04

ooops click here memtest86

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