It sounds like maybe a spyware infestation.

Mossie wrote:

Hi,

For the few days I have been having a computer problem.  This involves my computer slowing to a crawl and crashing with a blue screen error.  i have tracked this down to BOINC and disabling this solved the problem.  I upgraded from 4.13 to 4.19 but this doesn't help.  Any ideas what might be causing this.  WinXP, AMD Athlon 3000, 512MB RAM.  No new progs installed recently.  Thanks for any help you can give.