i have the same problem like http://silverstripe.org/archive/show/1058
i created silverstripe-cache folder but sql files *.MYD are saving in Windows/TEMP
[User Error] Couldn't run query: SHOW FULL FIELDS IN "Member" Table 'C:\windows\TEMP\#sql168_f9_1' is read only
Line 525 in C:\LUCREATI\www\sapphire\core\model\MySQLDatabase.php
how to fix it ?