umm im not sure but first u should try
http://v5.windowsupdate.microsoft.com/v5consumer/default.aspx?ln=en-us
then try to find out if any of your drivers can be updated ..My Computer-right click on local disk-properties-hardware-then selected them one at a time click properties-update driver
or/and
right click on local disk-tools-select"this option will check for volume errors check now"--select both the boxes-then restart ur comp as it askes u 2,and ill find errors if u have
im just guessing so dont get if ur promblem isnt fixed
---and for ur project most microsoft products auto save