Couldn't write state file: system fwrite

i know this isnt "serious" at least,, not yet. but i noticed the following messages..

6/15/2007 7:56:15 PM||[error] Couldn't write state file: system fwrite
6/15/2007 7:57:15 PM|Einstein@Home|Task h1_0446.35_S5R2__163_S5R2c_0 exited with zero status but no 'finished' file
6/15/2007 7:57:15 PM|Einstein@Home|If this happens repeatedly you may need to reset the project.
6/15/2007 7:57:16 PM|Einstein@Home|Restarting task h1_0446.35_S5R2__163_S5R2c_0 using einstein_S5R2 version 417
6/15/2007 7:57:16 PM||[error] Couldn't write state file: system fwrite
6/15/2007 7:58:16 PM|Einstein@Home|Task h1_0446.35_S5R2__163_S5R2c_0 exited with zero status but no 'finished' file
6/15/2007 7:58:16 PM|Einstein@Home|If this happens repeatedly you may need to reset the project.
6/15/2007 7:58:16 PM|Einstein@Home|Restarting task h1_0446.35_S5R2__163_S5R2c_0 using einstein_S5R2 version 417

i actually know i was not using the pc during this time, so i know it wasnt anything i did persoanlly, i lookd in event viewer, the only thing around that time (actually half an hour before) was a message about system restore suspending monitoring on c: because disk space is below 200MB. wich i just fixd :)

any who, im not really "worried" its just this is the first time ive ever experianced this message personally so desided to post :)