Blue screens today, ATI Radeon HD 4770

Didn't catch the error code, but Event Viewer says it was caused by "atikmdag" and provides an event ID of 43038. Definitely looks like a graphics thing, so I'm updating my graphics driver, but this just started happening today. I haven't installed anything new, or changed any settings. Graphics card and core temperatures are well within proper heat ranges. Has anyone else had anything like this, or is it isolated to me and something I need to figure out for myself?|||Fintan