I just asked about this on our weekly conference call with McAfee and it was a known issue with Toshiba machines.
You will have to make sure that the software is allowed full access in the firewall as it is probably only outgoing by default.
Is your taskbar icon shield-shaped or square with an M inside? I need to know the version before I commit to how you do that.
see next post
it is a red shield with a white M inside.
Thanks and apologies for my misspellings - have corrected same. Moved this to SecurityCenter 10 - 2010 as that appears to be your version.
Double-click the taskbar icon to open SecurityCenter
Click Web and Email Protection to expand it
Click Program Permissions - takes a little while to load.
Locate the software for your printer and ensure it has full access - it can be changed by highlighting it and then clickng the Edit button.
If it isn't listed you can use the Add button to add it by browsing to the .exe file in the folder within C:\ProgramFiles.
See if that helps.
If not I suggest contacting Technical Support Chat under Useful Links above.
If the software was purchased retail within the last 30 days there is free phone support too via McAfee Support above.
Forgot to add, unplug the printer, shut down. Plug it in and reboot. See if that helps.
Also make sure you are up to date with ALL updates whether or not they are critical.
By the way what is your operating system and service pack? (Right-click Computer - Vista/Windows 7 or My Computer - XP and then click Properties. That will tell you.