when i have this problem, i have founded one post about my problem, one people has writed that i muust to install ServicePack for XP, it is not right,
I now that ServicePack can solve very much of problems but service pack is not last solution for mysql_problem,
when i have installed mysql i make this
mysql for XP...
in c:\windows i have deleted my.ini (mysql creates this one)
then i have launched mysql and entered login and password
after this click - create button
after this is showed in tray mysql icon with red light
next i am clicking by right mouse on mysql tray icon and choose , WinNt>Install the service
after this i make similar(5) but choosing Start the service
on all my work pc where is XP, i have maked this and all is ok, this solution is writed in mysql_help