Hello everyone! My recently (2 months ago) rebuilt pc keeps spontaneously restarting. Its interfering badly with my work as a self-employed web developer working from home. System as follows. Up-to-date XP. Abit ic7 (secondhand) mobo P4 2.5ghz Nvidia geforce 440 2 x maxtor sata HD - 120gb 4 x 512 mb ram (all same) It all worked fine for the first couple of weeks but then started crashing and is now crashing several times a day. Often crashes when using Fireworks with large files. I have followed the recommendations in your posts; Tried different ram - both chips and slots. Tried different psu. Run chkdsk Re-set page file Used speedfan to check temps/voltages Uninstalled and re-installed every driver i could think of at least once. Re-installing nvidia drivers seemed to solve it for a couple of days but then back to the crashes and a further re-install has made no noticeable difference. .. and shes still crashing! Please find attached minidumps. Thank you for looking, I hope you can help. Richard.