I found this to be a patch to the problem...
Easier solution to the above problem. It would appear that when downloaded normally, the browsers are flagging the file as being potentially unsafe, whereas DownThemAll! is not. It would also appear the the PowerPoint 2010 programmers failed to handle this in the code. So, the easiest way to get around this error is to navigate to the file on your computer, right-click it and go down to properties. In the box that pops up, go down to the security section (at the bottom) and unblock the file. Open file.
Computer type PC/Desktop System Manufacturer/Model Number Packard Bell OS Windows 7 Home Premium 64bit CPU Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz Motherboard Packard Bell IPISB-AG Memory 3.00 GB Graphics Card (1) Intel(R) HD Graphics (2) VNC Mirror Driver Sound Card Realtek High Definition Audio Monitor(s) Displays AIO LCD Screen Resolution 1920 x 1080
Keyboard Wireless Mouse Wireless Hard Drives WDC WD10EADX-22TDHB0 ATA Device
Fixed hard disk media
931.51 GB Antivirus Microsoft Security Essentials Browser IE; Firefox Other Info Also:
Samsung N220 Plus Netbook - Windows 7 Home