a tool tip in rightside taskbar will pop out saying...
"Your virtual memory is too low"
"Windows is trying to increase it automatically..... etc. etc...."
im new with this word...
what is virtual me
The same thing happened to me before as well. Like mizel said I was also busy with my PS CS3 that time. My PS hanged and the thing pop-up and I was trying to save a file from PS but it says virtual memory is too low. Then I waited for 10 mins. and I can now save and I checked the free memory I've got in my PC and it's back to normal.