Ok, maybe i'm missing something here.... when i save an assembly, or drawing, it comes up with the usual "... has changed. do you want to save the files?". of course i say yes, close teh assy/dwg down, then go to close my parts. it comes up with "model has changed. do you want to save ?". i have to go thru this with every part.. i thought when you saved a dwg or a assembly, it saved all that was in that assy or drawing. has something changed in 2010, am i missing an assembly, or (most likely) another SW bug?