The culprit is security patch KB2753842 (12-11-12), in my case, in Windows 7, 64-bit, I have talked to Microsoft and reported this as an issue. In the meantime, hit a previous restore point and re-install all service patches except for the one above. Right click on the link to that patch and HIDE it. Then, update your antivirus and you're back to normal.
This also affects CorelDRAW X5 FWIW!
It was a PAINFUL process of elimination, but I finally figured it out!
I will post whatever I hear back from Microsoft.
I hope this has been helpful!
Gary G.
I am having the same problem at work with X4 running on XP. Fortunately I have another Windows 7 machine running X6. Do you think a restore might work on the XP machine?
Tommy Westbrook said:I am having the same problem at work with X4 running on XP. Fortunately I have another Windows 7 machine running X6. Do you think a restore might work on the XP machine?
Tommy, the solution is here (solution was also reported above, you must have skipped over it)